Benzene, 1,2,4,5-tetramethyl-
- Formula: C10H14
- Molecular weight: 134.2182
- IUPAC Standard InChIKey: SQNZJJAZBFDUTD-UHFFFAOYSA-N
- CAS Registry Number: 95-93-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Durene; Durol; 1,2,4,5-Tetramethylbenzene; p-Xylene, 2,5-dimethyl-
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -11.3 ± 0.45 | kcal/mol | Ccb | Colomina, Jimenez, et al., 1989 | see Boned, Colomina, et al., 1964; ALS |
ΔfH°gas | -11.21 ± 0.43 | kcal/mol | Ccb | Draeger, 1985 | Unpublished measurments of W.D.Good; ALS |
ΔfH°gas | -10.8 | kcal/mol | N/A | Good, 1975 | Value computed using ΔfHsolid° value of -119.9±1.3 kj/mol from Good, 1975 and ΔsubH° value of 74.6 kj/mol from Colomina, Jimenez, et al., 1989.; DRB |
Constant pressure heat capacity of gas
Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
33.27 | 200. | Draeger, 1985 | There is an appreciable difference between values of S(T) and Cp(T) for tetra-, penta-, and hexamethylbenzene from earlier statistical thermodynamics calculation [ Hastings S.H., 1957] and those obtained by [ Draeger, 1985] (up to 5, 9, and 16 J/mol*K, respectively). Results [ Draeger, 1985] are more reliable and they agree with experimental data for hexamethylbenzene.; GT |
41.01 | 273.15 | ||
43.76 ± 0.1 | 298.15 | ||
43.98 | 300. | ||
55.14 | 400. | ||
65.46 | 500. | ||
74.43 | 600. | ||
82.03 | 700. | ||
88.53 | 800. | ||
94.10 | 900. | ||
98.88 | 1000. | ||
103.0 | 1100. | ||
106.5 | 1200. | ||
109.5 | 1300. | ||
112.2 | 1400. | ||
114.4 | 1500. |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -23.58 ± 0.71 | kcal/mol | Ccb | Prosen, Johnson, et al., 1946 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1395.16 ± 0.72 | kcal/mol | Ccb | Prosen, Johnson, et al., 1946 | Corresponding ΔfHºliquid = -23.56 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -1388.4 ± 1.4 | kcal/mol | Ccb | Banse and Parks, 1933 | Reanalyzed by Cox and Pilcher, 1970, Original value = -1387.44 kcal/mol; Corresponding ΔfHºliquid = -30.32 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 58.70 | cal/mol*K | N/A | Huffman, Parks, et al., 1931 | Extrapolation below 90 K, 76.69 J/mol*K.; DH |
Quantity | Value | Units | Method | Reference | Comment |
ΔfH°solid | -29.09 ± 0.45 | kcal/mol | Ccb | Colomina, Jimenez, et al., 1989 | see Boned, Colomina, et al., 1964; ALS |
ΔfH°solid | -28.65 ± 0.31 | kcal/mol | Ccb | Good, 1975 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -1389.6 ± 0.33 | kcal/mol | Ccb | Colomina, Jimenez, et al., 1989 | see Boned, Colomina, et al., 1964; Corresponding ΔfHºsolid = -29.09 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°solid | -1390.07 ± 0.29 | kcal/mol | Ccb | Good, 1975 | Corresponding ΔfHºsolid = -28.65 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
65.89 | 353. | Kurbatov, 1947 | T = 80 to 193°C, mean Cp, three temperatures.; DH |
52.61 | 298.1 | Eibert, 1944 | T = 25 to 200°C, equations only in t°C. Cp(c) = 0.3662 + 0.001033t cal/g*K (25 to 45°C); Cp(liq) = 0.424 + 0.000589t cal/g*K (79 to 200°C).; DH |
51.41 | 297.1 | Huffman, Parks, et al., 1931 | T = 92 to 297.1 K. Value is unsmoothed experimental datum.; DH |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
48.762 | 298.15 | Colomina, Jimenez, et al., 1989 | DH |
51.53 | 303.15 | Ferry and Thomas, 1933 | T = 303 to 393 K.; DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 470. ± 4. | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 352.6 ± 0.9 | K | AVG | N/A | Average of 16 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 676. | K | N/A | Tsonopoulos and Ambrose, 1995 | |
Tc | 675.65 | K | N/A | Guye and Mallet, 1902 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 29. | atm | N/A | Tsonopoulos and Ambrose, 1995 | |
Pc | 28.600 | atm | N/A | Guye and Mallet, 1902 | Uncertainty assigned by TRC = 1.5000 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 17.5 ± 0.6 | kcal/mol | AVG | N/A | Average of 6 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
11.4 ± 0.07 | 375. | DM | Blok, van Genderen, et al., 2001 | Based on data from 363. to 381. K.; AC |
11.8 | 368. | A | Stephenson and Malanowski, 1987 | Based on data from 353. to 500. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
318. to 469.1 | 2.9147 | 908.263 | -160.447 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
17.0 | 333. | A | Balson, Denbigh, et al., 1947 | Based on data from 318. to 348. K.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
4.990 | 352.4 | Domalski and Hearing, 1996 | AC |
4.9904 | 352.4 | Eibert, 1944 | DH |
5.1004 | 352.05 | Ferry and Thomas, 1933 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
14.2 | 352.4 | Eibert, 1944 | DH |
Henry's Law data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference | Comment |
---|---|---|---|---|
0.039 | Q | N/A | missing citation give several references for the Henry's law constants but don't assign them to specific species. | |
0.040 | L | N/A |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.06 ± 0.03 | eV | N/A | N/A | L |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
<0.048 ± 0.017 | ECD | Wojnarovits and Foldiak, 1981 | EA is an upper limit: Chen and Wentworth, 1989. G3MP2B3 calculations indicate an EA of ca. -0.1 eV, anion unbound.; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.07 | PE | Santiago, Gandour, et al., 1978 | LLK |
8.50 ± 0.05 | EI | Meyer and Harrison, 1964 | RDSH |
8.025 ± 0.005 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
8.03 | PI | Bralsford, Harris, et al., 1960 | RDSH |
8.2 | CTS | Foster, 1959 | RDSH |
8.37 | CTS | Briegleb and Czekalla, 1959 | RDSH |
8.05 ± 0.02 | PI | Vilesov and Terenin, 1957 | RDSH |
8.05 | PE | Howell, Goncalves, et al., 1984 | Vertical value; LBLHLM |
8.13 | PE | Cabelli, Cowley, et al., 1982 | Vertical value; LBLHLM |
8.05 | PE | Bock and Kaim, 1978 | Vertical value; LLK |
IR Spectrum
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
View spectrum image in SVG format.
Download spectrum in JCAMP-DX format.
Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Sadtler Research Labs Under US-EPA Contract |
State | gas |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-1697 |
NIST MS number | 229182 |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | HP-5 | 100. | 1124.7 | Pérez-Parajón, Santiuste, et al., 2004 | 60. m/0.25 mm/0.25 μm |
Capillary | HP-5 | 120. | 1132.4 | Pérez-Parajón, Santiuste, et al., 2004 | 60. m/0.25 mm/0.25 μm |
Capillary | OV-1 | 100. | 1109.3 | Zhu, Zhang, et al., 1999 | Column length: 50. m; Column diameter: 0.25 mm |
Capillary | OV-1 | 150. | 1126. | Zhang, Chen, et al., 1997 | 25. m/0.2 mm/0.33 μm, N2 |
Capillary | CP Sil 2 | 80. | 1116.7 | Estel, Mohnke, et al., 1995 | 100. m/0.25 mm/0.25 μm |
Capillary | HP-1 | 60. | 1093. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | HP-1 | 60. | 1093. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | HP-1 | 100. | 1106. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | HP-1 | 100. | 1106. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | OV-1 | 100. | 1106.1 | Matisová and Kurán, 1990 | 52. m/0.25 mm/0.38 μm, N2 |
Capillary | OV-1 | 100. | 1105.6 | Matisová and Kurán, 1990 | 52. m/0.25 mm/0.38 μm, H2 |
Capillary | PONA | 100. | 1106.5 | Matisová and Kurán, 1990 | 50. m/0.2 mm/0.5 μm, H2 |
Capillary | OV-101 | 100. | 1106. | Matisová, Kovacicová, et al., 1989 | He; Column length: 50. m; Column diameter: 0.20 mm |
Capillary | OV-101 | 120. | 1113. | Matisová, Moravcová, et al., 1988 | N2; Column length: 278. m; Column diameter: 0.25 mm |
Capillary | Apolane | 120. | 1142. | Matisová, Moravcová, et al., 1988 | N2; Column length: 200. m; Column diameter: 0.25 mm |
Capillary | OV-101 | 100. | 1106. | Matisová, Rukríglová, et al., 1988 | H2; Column length: 278. m; Column diameter: 0.25 mm |
Capillary | OV-101 | 100. | 1106. | Matisová, Rukríglová, et al., 1988 | H2; Column length: 278. m; Column diameter: 0.25 mm |
Capillary | OV-101 | 100. | 1106. | Matisová, Rukríglová, et al., 1988 | H2; Column length: 278. m; Column diameter: 0.25 mm |
Capillary | OV-101 | 100. | 1107. | Matisová, Rukríglová, et al., 1988 | H2; Column length: 278. m; Column diameter: 0.25 mm |
Capillary | OV-101 | 100. | 1107. | Matisová, Rukríglová, et al., 1988 | H2; Column length: 278. m; Column diameter: 0.25 mm |
Capillary | OV-101 | 100. | 1107. | Matisová, Rukríglová, et al., 1988 | H2; Column length: 278. m; Column diameter: 0.25 mm |
Packed | SE-30 | 150. | 1125. | Tiess, 1984 | Ar, Gas Chrom Q (80-100 mesh); Column length: 3. m |
Capillary | OV-101 | 100. | 1105. | Boneva, Papazova, et al., 1983 | N2; Column length: 85. m; Column diameter: 0.28 mm |
Capillary | OV-101 | 100. | 1107. | Boneva, Papazova, et al., 1983 | N2; Column length: 85. m; Column diameter: 0.28 mm |
Capillary | OV-101 | 100. | 1105. | Boneva, Papazova, et al., 1983 | N2; Column length: 85. m; Column diameter: 0.28 mm |
Capillary | OV-101 | 110. | 1108. | Boneva, Papazova, et al., 1983 | N2; Column length: 85. m; Column diameter: 0.28 mm |
Capillary | OV-101 | 90. | 1100. | Boneva, Papazova, et al., 1983 | N2; Column length: 85. m; Column diameter: 0.28 mm |
Capillary | SE-30 | 70. | 1096.4 | Tóth, 1983 | N2; Column length: 15. m; Column diameter: 0.25 mm |
Capillary | SE-30 | 130. | 1118. | Bredael, 1982 | Column length: 100. m; Column diameter: 0.5 mm |
Capillary | SE-30 | 80. | 1100. | Bredael, 1982 | Column length: 100. m; Column diameter: 0.5 mm |
Capillary | OV-101 | 100. | 1107. | Gerasimenko and Nabivach, 1982 | N2; Column length: 50. m; Column diameter: 0.30 mm |
Capillary | OV-101 | 120. | 1114. | Gerasimenko and Nabivach, 1982 | N2; Column length: 50. m; Column diameter: 0.30 mm |
Capillary | OV-101 | 140. | 1121. | Gerasimenko and Nabivach, 1982 | N2; Column length: 50. m; Column diameter: 0.30 mm |
Capillary | Squalane | 86. | 1102.8 | Macák, Nabivach, et al., 1982 | N2; Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Squalane | 96. | 1105.9 | Macák, Nabivach, et al., 1982 | N2; Column length: 50. m; Column diameter: 0.25 mm |
Capillary | OV-101 | 100. | 1107.2 | Gerasimenko, Kirilenko, et al., 1981 | N2; Column length: 50. m; Column diameter: 0.3 mm |
Capillary | OV-101 | 120. | 1114.4 | Gerasimenko, Kirilenko, et al., 1981 | N2; Column length: 50. m; Column diameter: 0.3 mm |
Capillary | OV-101 | 140. | 1121.2 | Gerasimenko, Kirilenko, et al., 1981 | N2; Column length: 50. m; Column diameter: 0.3 mm |
Packed | Squalane | 100. | 1106. | Nabivach and Kirilenko, 1980 | He, Chromaton N-AW-HMDS; Column length: 1. m |
Capillary | Squalane | 86. | 1102.8 | Nabivach, Bur'yan, et al., 1978 | Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Squalane | 96. | 1105.9 | Nabivach, Bur'yan, et al., 1978 | Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Squalane | 100. | 1107. | Engewald and Wennrich, 1976 | N2; Column length: 100. m; Column diameter: 0.23 mm |
Capillary | Squalane | 80. | 1099.53 | Soják and Rijks, 1976 | H2; Column length: 100. m; Column diameter: 0.25 mm |
Packed | SE-30 | 120. | 1124. | Mitra, Mohan, et al., 1974 | N2, Chrom W; Column length: 6.1 m |
Packed | SE-30 | 130. | 1128. | Mitra, Mohan, et al., 1974 | N2, Chrom W; Column length: 6.1 m |
Packed | SE-30 | 140. | 1134. | Mitra, Mohan, et al., 1974 | N2, Chrom W; Column length: 6.1 m |
Capillary | SE-30 | 65. | 1094.9 | Svob and Deur-Siftar, 1974 | He; Column length: 25.5 m; Column diameter: 0.5 mm |
Packed | Apiezon L | 100. | 1145. | Brown, Chapman, et al., 1968 | N2, DCMS-treated Chromosorb W; Column length: 2.3 m |
Packed | Methyl Silicone | 130. | 1123. | Antheaume and Guiochon, 1965 |
Kovats' RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 1114.2 | Wang, Fingas, et al., 1994 | 30. m/0.32 mm/0.25 μm, He, 50. C @ 2. min, 6. K/min; Tend: 300. C |
Capillary | Apiezon L | 1147. | Louis, 1971 | N2, 1. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tstart: 60. C |
Kovats' RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Petrocol DH-100 | 1104.85 | Haagen-Smit Laboratory, 1997 | He; Column length: 100. m; Column diameter: 0.2 mm; Program: 5C(10min) => 5C/min => 50C(48min) => 1.5C/min => 195C(91min) |
Capillary | DB-1 | 1108. | Hoekman, 1993 | 60. m/0.32 mm/1.0 μm, He; Program: -40 C for 12 min; -40 - 125 C at 3 deg.min; 125-185 C at 6 deg/min; 185 - 220 C at 20 deg/min; hold 220 C for 2 min |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | ZB-Wax | 100. | 1447.3 | Pérez-Parajón, Santiuste, et al., 2004 | 60. m/0.25 mm/0.25 μm |
Capillary | ZB-Wax | 120. | 1463.0 | Pérez-Parajón, Santiuste, et al., 2004 | 60. m/0.25 mm/0.25 μm |
Capillary | ZB-Wax | 140. | 1480.3 | Pérez-Parajón, Santiuste, et al., 2004 | 60. m/0.25 mm/0.25 μm |
Capillary | PEG-20M | 70. | 1406.8 | Tóth, 1983 | N2; Column length: 30. m; Column diameter: 0.3 mm |
Capillary | Carbowax 20M | 100. | 1401.3 | Engewald and Wennrich, 1976 | N2; Column length: 100. m; Column diameter: 0.23 mm |
Capillary | Carbowax 6000 | 90. | 1445.8 | Svob and Deur-Siftar, 1974 | He; Column length: 10. m; Column diameter: 0.25 mm |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SPB-5 | 1129. | Engel and Ratel, 2007 | 60. m/0.32 mm/1. μm, 40. C @ 2. min, 3. K/min, 230. C @ 10. min |
Capillary | PONA | 1109. | Vendeuvre, Bertoncini, et al., 2005 | 50. m/0.2 mm/0.5 μm, 2. K/min; Tstart: 50. C |
Capillary | PONA | 1117. | Vendeuvre, Bertoncini, et al., 2005 | 50. m/0.2 mm/0.5 μm, 5. K/min; Tstart: 50. C |
Capillary | Petrocol DH | 1109.4 | Censullo, Jones, et al., 2003 | 50. m/0.25 mm/0.5 μm, He, 35. C @ 10. min, 3. K/min, 200. C @ 10. min |
Capillary | DB-5 | 1109.7 | Song, Lai, et al., 2003 | 30. m/0.25 mm/0.25 μm, He, 2. K/min; Tstart: 40. C; Tend: 310. C |
Capillary | DB-5 | 1114.1 | Song, Lai, et al., 2003 | 30. m/0.25 mm/0.25 μm, He, 4. K/min; Tstart: 40. C; Tend: 310. C |
Capillary | DB-5 | 1115.8 | Song, Lai, et al., 2003 | 30. m/0.25 mm/0.25 μm, He, 6. K/min; Tstart: 40. C; Tend: 310. C |
Capillary | DB-5 | 1130.2 | Xu, van Stee, et al., 2003 | 30. m/0.25 mm/1. μm, He, 2.5 K/min; Tstart: 50. C; Tend: 200. C |
Capillary | OV-1 | 1140.0 | Zhang, Shen, et al., 2000 | 25. m/0.2 mm/0.33 μm, 5. K/min; Tstart: 100. C; Tend: 180. C |
Capillary | PONA | 1097.9 | Martos, Saraullo, et al., 1997 | 50. m/0.2 mm/0.5 μm, 35. C @ 0.5 min, 1. K/min, 220. C @ 8. min |
Capillary | PONA | 1101.2 | Martos, Saraullo, et al., 1997 | 50. m/0.2 mm/0.5 μm, 35. C @ 0.5 min, 1. K/min, 220. C @ 8. min |
Capillary | DB-5 | 1109.7 | Lai and Song, 1995 | 30. m/0.25 mm/0.25 μm, He, 2. K/min; Tstart: 40. C; Tend: 310. C |
Capillary | DB-5 | 1114.1 | Lai and Song, 1995 | 30. m/0.25 mm/0.25 μm, He, 4. K/min; Tstart: 40. C; Tend: 310. C |
Capillary | DB-5 | 1115.8 | Lai and Song, 1995 | 30. m/0.25 mm/0.25 μm, He, 6. K/min; Tstart: 40. C; Tend: 310. C |
Capillary | Petrocol DH | 1101.84 | White, Douglas, et al., 1992 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Capillary | Petrocol DH | 1102.07 | White, Douglas, et al., 1992 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Capillary | Petrocol DH | 1102. | White, Hackett, et al., 1992 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Capillary | SPB-1 | 1099. | Huang, Bruechert, et al., 1987 | 60. m/0.25 mm/0.25 μm, He, 35. C @ 10. min, 2. K/min, 235. C @ 40. min |
Capillary | SPB-1 | 1099. | Huang, Bruechert, et al., 1987 | 60. m/0.25 mm/0.25 μm, He, 35. C @ 10. min, 2. K/min, 235. C @ 40. min |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 1110.08 | Hassoun, Pilling, et al., 1999 | 50. m/0.25 mm/1. μm, He; Program: -50C(2min) => 49.9C/min => 35C(10min) => 3C/min => 200C(2min) => 40C/min => 240C(30min) |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | CP-Wax 52CB | 1419. | Alasalvar, Taylor, et al., 2005 | 60. m/0.25 mm/0.25 μm, 35. C @ 4. min, 3. K/min; Tend: 203. C |
Capillary | Supelcowax-10 | 1417. | Chung, Fung, et al., 2005 | 60. m/0.25 mm/0.25 μm, 35. C @ 5. min, 6. K/min, 195. C @ 60. min |
Capillary | DB-Wax | 1438. | Le Guen, Prost, et al., 2000 | 60. m/0.32 mm/0.5 μm, He, 40. C @ 2. min, 4. K/min, 250. C @ 10. min |
Capillary | Supelcowax-10 | 1432. | Chung and Cadwallader, 1993 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 5. min, 2. K/min, 195. C @ 40. min |
Capillary | Supelcowax-10 | 1433. | Tanchotikul and Hsieh, 1989 | 60. m/0.25 mm/0.25 μm, 40. C @ 5. min, 2. K/min, 175. C @ 20. min |
Capillary | Supelcowax-10 | 1440. | Tanchotikul and Hsieh, 1989 | 60. m/0.25 mm/0.25 μm, 40. C @ 5. min, 2. K/min, 175. C @ 20. min |
Van Den Dool and Kratz RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 1400. | Hallier, Prost, et al., 2005 | 30. m/0.32 mm/0.5 μm, He; Program: 40C(5min) => 10C/min => 160C => 15C/min => 230C |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Methyl Silicone | 120. | 1107. | Chen and Feng, 2006 | |
Capillary | Methyl Silicone | 120. | 1121. | Chen and Feng, 2006 | |
Capillary | OV-101 | 100. | 1107. | Tian, 1993 | Column length: 50. m; Column diameter: 0.20 mm |
Capillary | OV-101 | 100. | 1107. | Tian, 1993 | Column length: 50. m; Column diameter: 0.20 mm |
Capillary | OV-101 | 120. | 1114. | Tian, 1993 | Column length: 50. m; Column diameter: 0.20 mm |
Capillary | OV-101 | 120. | 1114. | Tian, 1993 | Column length: 50. m; Column diameter: 0.20 mm |
Capillary | Squalane | 100. | 1111. | Bermejo, Moinelo, et al., 1980 | N2; Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Squalane | 95.4 | 1103. | Sojak and Vigdergauz, 1978 | H2 |
Capillary | Squalane | 110. | 1111. | Papazova and Pankova, 1975 | N2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Squalane | 130. | 1117. | Papazova and Pankova, 1975 | N2; Column length: 100. m; Column diameter: 0.25 mm |
Packed | Polydimethyl siloxane | 110. | 1113. | Ferrand, 1962 |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polydimethyl siloxane: CP-Sil 5 CB | 1111. | Bramston-Cook, 2013 | 60. m/0.25 mm/1.0 μm, Helium, 45. C @ 1.45 min, 3.6 K/min, 210. C @ 2.72 min |
Capillary | Petrocol DH | 1109. | Supelco, 2012 | 100. m/0.25 mm/0.50 μm, Helium, 20. C @ 15. min, 15. K/min, 220. C @ 30. min |
Capillary | VF-5 MS | 1116. | Leffingwell and Alford, 2011 | 60. m/0.32 mm/0.25 μm, Helium, 2. K/min, 260. C @ 28. min; Tstart: 30. C |
Capillary | VF-5 MS | 1118. | Leffingwell and Alford, 2011 | 60. m/0.32 mm/0.25 μm, Helium, 2. K/min, 260. C @ 28. min; Tstart: 30. C |
Capillary | PONA | 1112. | Zhang, Ding, et al., 2009 | 50. m/0.20 mm/0.50 μm, Nitrogen, 35. C @ 15. min, 2. K/min, 200. C @ 10. min |
Capillary | HP-1 | 1101. | Castel, Fernandez, et al., 2006 | 50. m/0.2 mm/0.33 μm, He, 60. C @ 4. min, 2. K/min, 250. C @ 30. min |
Capillary | OV-1 | 1100. | Orav, Kailas, et al., 1999 | 2. K/min; Tstart: 50. C; Tend: 160. C |
Capillary | HP-5 | 1123.2 | Wang and Fingas, 1995 | 30. m/0.25 mm/0.25 μm, He, 35. C @ 2. min, 10. K/min, 300. C @ 10. min |
Capillary | DB-1 | 1113. | Ciccioli, Cecinato, et al., 1992 | 60. m/0.32 mm/1.2 μm, He, 30. C @ 10. min, 3. K/min; Tend: 240. C |
Capillary | CP Sil 5 CB | 1098. | Hartgers, Damste, et al., 1992 | 25. m/0.32 mm/0.45 μm, He, 0. C @ 5. min, 3. K/min, 320. C @ 10. min |
Capillary | OV-101 | 1102. | Zenkevich and Ventura, 1991 | Helium, 50. C @ 0. min, 5. K/min, 240. C @ 0. min; Column length: 54. m; Column diameter: 0.26 mm |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 MS | 1130. | Cajka, Hajslova, et al., 2007 | 30. m/0.25 mm/0.25 μm, Helium; Program: 45 0C (0.75 min) 10 0C/min -> 200 0C 30 0C/min -> 245 0C (1.25 min) |
Capillary | Methyl Silicone | 1119. | Blunden, Aneja, et al., 2005 | 60. m/0.32 mm/1.0 μm, Helium; Program: -50 0C (2 min) 8 0C/min -> 200 0C (7.75 min) 25 0C -> 225 0C (8 min) |
Capillary | HP-5MS | 1131. | Vichi, Pizzale, et al., 2005 | 30. m/0.25 mm/0.25 μm; Program: 40C(3min) => 4C/min => 75C => 8C/min => 250C |
Capillary | Polymethylsiloxane, (PMS-20000) | 1096. | Cornwell and Cordano, 2003 | Program: not specified |
Capillary | OV-101 | 1107. | Zhu and Wang, 2001 | Program: not specified |
Capillary | HP-5 | 1146. | Timón, Ventanas, et al., 1998 | 50. m/0.32 mm/0.52 μm, He; Program: 35 0C 10 0C/min -> 200 0C (20 min) 5 0C/min -> 230 0C (50 min) |
Capillary | SE-30 | 1096. | Xiuhua, Zhang, et al., 1996 | Program: not specified |
Capillary | SE-30 | 1108. | Xiuhua, Zhang, et al., 1996 | Program: not specified |
Capillary | DB-1 | 1104. | Ciccioli, Cecinato, et al., 1994 | 60. m/0.32 mm/0.25 μm; Program: not specified |
Capillary | OV-101 | 1106. | Matisová, Juranyiová, et al., 1991 | 52. m/0.25 mm/0.38 μm, H2; Program: 70 - 160 C at 1.5 deg/min; 160 - 280 C at 15 deg/min 15 min at 280 C |
Capillary | OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc. | 1095. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
Capillary | OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc. | 1103. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
Capillary | OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc. | 1100. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax-10 | 1411. | Vichi, Pizzale, et al., 2005 | 30. m/0.25 mm/0.25 μm; Program: 40C(3min) => 4C/min => 75C => 8C/min => 250C |
Capillary | Carbowax 20M | 1407. | Cornwell and Cordano, 2003 | Program: not specified |
Capillary | PEG-20M | 1416. | Xiuhua, Zhang, et al., 1996 | Program: not specified |
Capillary | CP-Wax 52CB | 1435. | Luning, de Rijk, et al., 1994 | 50. m/0.32 mm/1.5 μm; Program: 40C => 2C/min => 150C => 10C/min => 250C |
Capillary | CP-Wax 52CB | 1435. | Luning, de Rijk, et al., 1994 | 50. m/0.32 mm/1.5 μm; Program: 40C => 2C/min => 150C => 10C/min => 250C |
Capillary | DB-Wax | 1459. | Peng, Yang, et al., 1991 | Program: not specified |
Capillary | Carbowax 400, Carbowax 20M, Carbowax 1540, Carbowax 4000, Superox 06, PEG 20M, etc. | 1446. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Colomina, Jimenez, et al., 1989
Colomina, M.; Jimenez, P.; Roux, M.V.; Turrion, C.,
Thermochemical properties of 1,2,4,5-tetramethylbenzene, pentamethylbenzene, and hexamethylbenzene,
J. Chem. Thermodyn., 1989, 21, 275-281. [all data]
Boned, Colomina, et al., 1964
Boned, M.L.; Colomina, M.; Perez-Ossorio, R.; Turrion, C.,
Investigaciones termoquimicas sobre los polimetilbencenos superiores,
Anal. Fisc. Quim. B, 1964, 60, 459-468. [all data]
Draeger, 1985
Draeger, J.A.,
The methylbenzenes II. Fundamental vibrational shifts, statistical thermodynamic functions, and properties of formation,
J. Chem. Thermodyn., 1985, 17, 263-275. [all data]
Good, 1975
Good, W.D.,
The standard enthalpies of combustion and formation of n-butylbenzene, the dimethylethylbenzenes, and the tetramethylbenzenes in the condensed state,
J. Chem. Thermodyn., 1975, 7, 49-59. [all data]
Hastings S.H., 1957
Hastings S.H.,
Thermodynamic properties of selected methylbenzenes from 0 to 1000 K,
J. Phys. Chem., 1957, 61, 730-735. [all data]
Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D.,
Heats of combustion and formation at 25°C of the alkylbenzenes through C10H14, and of the higher normal monoalkylbenzenes,
J. Res. NBS, 1946, 36, 455-461. [all data]
Banse and Parks, 1933
Banse, H.; Parks, G.S.,
Thermal data on organic compounds. XII. The heats of combustion of nine hydrocarbons,
J. Am. Chem. Soc., 1933, 55, 3223-3227. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Huffman, Parks, et al., 1931
Huffman, H.M.; Parks, G.S.; Barmore, M.,
Thermal data on organic compounds. X. Further studies on the heat capacities, entropies and free energies of hydrocarbons,
J. Am. Chem. Soc., 1931, 53, 3876-3888. [all data]
Kurbatov, 1947
Kurbatov, V.Ya.,
Specific heat of liquids. I. Specific heat of benzenoid hydrocarbons,
Zhur. Obshch. Khim., 1947, 17, 1999-2003. [all data]
Eibert, 1944
Eibert, J.,
Thesis Washington University (St. Louis), 1944. [all data]
Ferry and Thomas, 1933
Ferry, J.D.; Thomas, S.B.,
Some heat capacity data for durene, pentamethylbenzene, stilbene, and dibenzyl,
J. Phys. Chem., 1933, 37, 253-255. [all data]
Tsonopoulos and Ambrose, 1995
Tsonopoulos, C.; Ambrose, D.,
Vapor-Liquid Critical Properties of Elements and Compounds. 3. Aromatic Hydrocarbons,
J. Chem. Eng. Data, 1995, 40, 547-558. [all data]
Guye and Mallet, 1902
Guye, P.A.; Mallet, E.,
Measurement of Critical Constants,
Arch. Sci. Phys. Nat., 1902, 13, 274-296. [all data]
Blok, van Genderen, et al., 2001
Blok, Jacobus G.; van Genderen, Aad C.G.; van der Linde, Peter R.; Oonk, Harry A.J.,
Vapour pressures of crystalline 1,2,4,5-tetrachlorobenzene, and crystalline and liquid 1,3,5-trichlorobenzene and 1,2,4,5-tetramethylbenzene,
The Journal of Chemical Thermodynamics, 2001, 33, 9, 1097-1106, https://doi.org/10.1006/jcht.2000.0819
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Balson, Denbigh, et al., 1947
Balson, E.W.; Denbigh, K.G.; Adam, N.K.,
Studies in vapour pressure measurement. Part I.?The vapour pressure of ???-dichlorethyl sulphide (mustard gas),
Trans. Faraday Soc., 1947, 43, 42, https://doi.org/10.1039/tf9474300042
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Wojnarovits and Foldiak, 1981
Wojnarovits, L.; Foldiak, G.,
Electron capture detection of aromatic hydrocarbons,
J. Chromatogr. Sci., 1981, 206, 511. [all data]
Chen and Wentworth, 1989
Chen, E.C.M.; Wentworth, W.E.,
Experimental Determination of Electron Affinities of Organic Molecules,
Mol. Cryst. Liq. Cryst., 1989, 171, 271. [all data]
Santiago, Gandour, et al., 1978
Santiago, C.; Gandour, R.W.; Houk, K.N.; Nutakul, W.; Cravey, W.E.; Thummel, R.P.,
Photoelectron and ultraviolet spectra of small-ring fused aromatic molecules as probes of aromatic ring distortions,
J. Am. Chem. Soc., 1978, 100, 3730. [all data]
Meyer and Harrison, 1964
Meyer, F.; Harrison, A.G.,
Ionization potentials of methyl-substituted benzenes and cyclopentadienes,
Can. J. Chem., 1964, 42, 2256. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Bralsford, Harris, et al., 1960
Bralsford, R.; Harris, P.V.; Price, W.C.,
The effect of fluorine on the electronic spectra and ionization potentials of molecules,
Proc. Roy. Soc. (London), 1960, A258, 459. [all data]
Foster, 1959
Foster, R.,
Ionization potentials of electron donors,
Nature (London), 1959, 183, 1253. [all data]
Briegleb and Czekalla, 1959
Briegleb, G.; Czekalla, J.,
Die Bestimmung von lonisierungsenergien aus den Spektren von Elektronenubergangskomplexen,
Z.Elektrochem., 1959, 63, 6. [all data]
Vilesov and Terenin, 1957
Vilesov, F.I.; Terenin, A.N.,
The photoionization of the vapors of certain organic compounds,
Dokl. Akad. Nauk SSSR, 1957, 115, 744, In original 539. [all data]
Howell, Goncalves, et al., 1984
Howell, J.O.; Goncalves, J.M.; Amatore, C.; Klasinc, L.; Wightman, R.M.; Kochi, J.K.,
Electron transfer from aromatic hydrocarbons and their π-complexes with metals. Comparison of the standard oxidation potentials and vertical ionization potentials,
J. Am. Chem. Soc., 1984, 106, 3968. [all data]
Cabelli, Cowley, et al., 1982
Cabelli, D.E.; Cowley, A.H.; Lagowski, J.J.,
The bonding in some bis(arene)chromium compounds as indicated by U. V. photoelectron zpectroscopy,
Inorg. Chim. Acta, 1982, 57, 195. [all data]
Bock and Kaim, 1978
Bock, H.; Kaim, W.,
Einelektronen-Oxidationen (H3C)3SiCH2-substituierter Benzole in der Gasphase und in Losung,
Chem. Ber., 1978, 111, 3552. [all data]
Pérez-Parajón, Santiuste, et al., 2004
Pérez-Parajón, J.M.; Santiuste, J.M.; Takács, J.M.,
Sensitivity of the methylbenzenes and chlorobenzenes retention index to column temperature, stationary phase polarity, and number and chemical nature of substituents,
J. Chromatogr. A, 2004, 1048, 2, 223-232, https://doi.org/10.1016/j.chroma.2004.07.028
. [all data]
Zhu, Zhang, et al., 1999
Zhu, X.; Zhang, L.; Chen, J.; Wang, L.; Che, X.,
The application quantitative structure-retention relationship of GC to aid MS qualitative analysis,
Chin. J. Chromatogr., 1999, 17, 4, 351-353. [all data]
Zhang, Chen, et al., 1997
Zhang, M.; Chen, B.; Shen, S.; Chen, S.,
Compositional studies of high-temperature coal tar by g.c.-FT-i.r. analysis of middle oil fractions,
Fuel, 1997, 76, 5, 415-423, https://doi.org/10.1016/S0016-2361(97)85518-4
. [all data]
Estel, Mohnke, et al., 1995
Estel, D.; Mohnke; Biermans; Rotzsche,
The analysis of C4-C11 hydrocarbons in naphtha and reformate with a new apolar fused silica column,
J. Hi. Res. Chromatogr., 1995, 18, 7, 403-412, https://doi.org/10.1002/jhrc.1240180703
. [all data]
Zhang, Li, et al., 1992
Zhang, M.J.; Li, S.D.; Chen, B.J.,
Compositional studies of high-temperature coal tar by GC/FTIR analysis of light oil fractions,
Chromatographia, 1992, 33, 3/4, 138-146, https://doi.org/10.1007/BF02275894
. [all data]
Matisová and Kurán, 1990
Matisová, E.; Kurán, P.,
Reproducibility of retention indices measurement of alkylbenzenes on crosslinked methyl silicone phase fused silica capillaries,
Chromatographia, 1990, 30, 5/6, 328-332, https://doi.org/10.1007/BF02319717
. [all data]
Matisová, Kovacicová, et al., 1989
Matisová, E.; Kovacicová, E.; Ha, P.T.; Kolek, E.; Engewald, W.,
Identification of alkylbenzenes up to C12 by capillary gas chromatography-mass spectrometry. II. Retention indices on OV-101 columns and retention-molecular structure correlations,
J. Chromatogr., 1989, 475, 2, 113-123, https://doi.org/10.1016/S0021-9673(01)89667-9
. [all data]
Matisová, Moravcová, et al., 1988
Matisová, E.; Moravcová, A.; Krupcík; Cellár, P.; Leclercq, P.A.,
Problems with the reproducibility of retention data on capillary columns with hydrocarbon C87 as the stationary phase,
J. Chromatogr., 1988, 454, 65-71, https://doi.org/10.1016/S0021-9673(00)88602-1
. [all data]
Matisová, Rukríglová, et al., 1988
Matisová, E.; Rukríglová, M.; Krupcík, J.; Kovacicová, E.; Holotík, S.,
Identification of alkylbenzenes up to C12 by capillary gas chromatography and combined gas chromatography-mass spectrometry. I. OV-101 as stationary phase,
J. Chromatogr., 1988, 455, 301-309, https://doi.org/10.1016/S0021-9673(01)82129-4
. [all data]
Tiess, 1984
Tiess, D.,
Gaschromatographische Retentionsindices von 125 leicht- bis mittelflüchtigen organischen Substanzen toxikologisch-analytischer Relevanz auf SE-30,
Wiss. Z. Wilhelm-Pieck-Univ. Rostock Math. Naturwiss. Reihe, 1984, 33, 6-9. [all data]
Boneva, Papazova, et al., 1983
Boneva, St.; Papazova, D.; Dimov, N.,
Retention Indices of aromatic hydrocarbons on glass and metal capillary columns with stationary phase OV-101,
Jahrb. Chem. Tech. Hochschule Burgas, 1983, 18, 143-148. [all data]
Tóth, 1983
Tóth, T.,
Use of capillary gas chromatography in collecting retention and chemical information for the analysis of complex petrochemical mixtures,
J. Chromatogr., 1983, 279, 157-165, https://doi.org/10.1016/S0021-9673(01)93614-3
. [all data]
Bredael, 1982
Bredael, P.,
Retention indices of hydrocarbons on SE-30,
J. Hi. Res. Chromatogr. Chromatogr. Comm., 1982, 5, 6, 325-328, https://doi.org/10.1002/jhrc.1240050610
. [all data]
Gerasimenko and Nabivach, 1982
Gerasimenko, V.A.; Nabivach, V.M.,
Relationship between molecular structure and gas chromatographic retention of alkylbenzenes C8-C1 2 on polydimethylsiloxane,
Zh. Anal. Khim., 1982, 37, 110-116. [all data]
Macák, Nabivach, et al., 1982
Macák, J.; Nabivach, V.; Buryan, P.; Sindler, S.,
Dependence of retention indices of alkylbenzenes on their molecular structure,
J. Chromatogr., 1982, 234, 2, 285-302, https://doi.org/10.1016/S0021-9673(00)81867-1
. [all data]
Gerasimenko, Kirilenko, et al., 1981
Gerasimenko, V.A.; Kirilenko, A.V.; Nabivach, V.M.,
Capillary gas chromatography of aromatic compounds found in coal tar fractions,
J. Chromatogr., 1981, 208, 1, 9-16, https://doi.org/10.1016/S0021-9673(00)87953-4
. [all data]
Nabivach and Kirilenko, 1980
Nabivach, V.M.; Kirilenko, A.V.,
Relationship between the gas chromatographic behaviour and the molecular structure of hydrocarbon samples and various stationary phases. Part II. Correlation between the retention index, physicochemical properties and molecular structure,
Chromatographia, 1980, 13, 2, 93-100, https://doi.org/10.1007/BF02263060
. [all data]
Nabivach, Bur'yan, et al., 1978
Nabivach, V.M.; Bur'yan, P.; Matsak, I.,
Retention indices of aromatic hydrocarbons on a squalane capillary column,
Zh. Anal. Khim., 1978, 33, 7, 1108-1113. [all data]
Engewald and Wennrich, 1976
Engewald, W.; Wennrich, L.,
Molekülstruktur und Retentionsverhalten. VIII. Zum Retentionsverhalten höherer Alkylbenzole bei der Gas-Verteilungs-Chromatographie,
Chromatographia, 1976, 9, 11, 540-547, https://doi.org/10.1007/BF02275960
. [all data]
Soják and Rijks, 1976
Soják, L.; Rijks, J.A.,
Capillary gas chromatography of alkylbenzenes. I. Some problems encountered with the precision of the retention indcies of alkylbenzenes,
J. Chromatogr., 1976, 119, 505-521, https://doi.org/10.1016/S0021-9673(00)86812-0
. [all data]
Mitra, Mohan, et al., 1974
Mitra, G.D.; Mohan, G.; Sinha, A.,
Advances in the utilization of the retention index system for characterizing hydrocarbons in complex mixtures by gas chromatography,
J. Chromatogr., 1974, 99, 215-230, https://doi.org/10.1016/S0021-9673(00)90857-4
. [all data]
Svob and Deur-Siftar, 1974
Svob, V.; Deur-Siftar, D.,
Kovats Retention Indices in the Identification of Alkylbenzene Degradation Products,
J. Chromatogr., 1974, 91, 677-689, https://doi.org/10.1016/S0021-9673(01)97947-6
. [all data]
Brown, Chapman, et al., 1968
Brown, I.; Chapman, I.L.; Nicholson, G.J.,
Gas chromatography of polar solutes in electron acceptor stationary phases,
Aust. J. Chem., 1968, 21, 5, 1125-1141, https://doi.org/10.1071/CH9681125
. [all data]
Antheaume and Guiochon, 1965
Antheaume, J.; Guiochon, G.,
Application de la chromatographie en phase gazeuse à l'étude de la composition des fractions moyennes d'un brut pétrolier,
Bull. Soc. Chim. Fr., 1965, 2, 298-307. [all data]
Wang, Fingas, et al., 1994
Wang, Z.; Fingas, M.; Li, K.,
Fractionation of a light crude oil and identification and quantitation of aliphatic, aromatic, and biomarker comopunds by GC-FID and GC-MS, Part II,
J. Chromatogr. Sci., 1994, 32, 9, 367-382, https://doi.org/10.1093/chromsci/32.9.367
. [all data]
Louis, 1971
Louis, R.,
Kovats-index-tafeln zur gaschromatographischen analyse von kohlenwasserstoffgemischen,
Erdoel Kohle Erdgas Petrochem., 1971, 24, 2, 88-94. [all data]
Haagen-Smit Laboratory, 1997
Haagen-Smit Laboratory,
Procedure for the detailed hydrocarbon analysis of gasolines by single column high efficiency (capillary) column gas chromatography, SOP NO. MLD 118, Revision No. 1.1, California Environmental Protection Agency, Air Resources Board, El Monte, California, 1997, 22. [all data]
Hoekman, 1993
Hoekman, S.K.,
Improved gas chromatography procedure for speciated hydrocarbon measurements of vehicle emissions,
J. Chromatogr., 1993, 639, 2, 239-253, https://doi.org/10.1016/0021-9673(93)80260-F
. [all data]
Engel and Ratel, 2007
Engel, E.; Ratel, J.,
Correction of the data generated by mass spectrometry analyses of biological tissues: Application to food authentication,
J. Chromatogr. A, 2007, 1154, 1-2, 331-341, https://doi.org/10.1016/j.chroma.2007.02.012
. [all data]
Vendeuvre, Bertoncini, et al., 2005
Vendeuvre, C.; Bertoncini, F.; Thiébaut, D.; Martin, M.; Hennion, M.-C.,
Evluation of a retention model in comprehensive two-dimensional gas chromatography,
J. Sep. Sci., 2005, 28, 11, 1129-1136, https://doi.org/10.1002/jssc.200401933
. [all data]
Censullo, Jones, et al., 2003
Censullo, A.C.; Jones, D.R.; Wills, M.T.,
Speciation of the volatile organic compounds (VOCs) in solventborne aerosol coatings by solid phase microextraction-gas chromatography,
J. Coat. Technol., 2003, 75, 936, 47-53, https://doi.org/10.1007/BF02697922
. [all data]
Song, Lai, et al., 2003
Song, C.; Lai, W.-C.; Madhusudan Reddy, K.; Wei, B.,
Chapter 7. Temperature-programmed retention indices for GC and GC-MS of hydrocarbon fuels and simulated distillation GC of heavy oils
in Analytical advances for hydrocarbon research, Hsu,C.S., ed(s)., Kluwer Academic/Plenum Publishers, New York, 2003, 147-193. [all data]
Xu, van Stee, et al., 2003
Xu, X.; van Stee, L.L.P.; Williams, J.; Beens, J.; Adahchour, M.; Vreuls, R.J.J.; Brinkman, U.A.Th.; Lelieveld, J.,
Comprehensive two-dimensional gas chromatography (GC×GC) measurements of volatile organic compounds in the atmosphere,
Atmos. Chem. Phys., 2003, 3, 3, 665-682, https://doi.org/10.5194/acp-3-665-2003
. [all data]
Zhang, Shen, et al., 2000
Zhang, M.-J.; Shen, S.-D.; Chen, S.-Y.; Sun, Y.-H.,
Analysis of heavy oil fractions in high-temperature coal tar by capillary gas chromatography/fourier transform infrared spectrometry,
Chin. J. Chromatogr., 2000, 18, 3, 241-246. [all data]
Martos, Saraullo, et al., 1997
Martos, P.A.; Saraullo, A.; Pawliszyn, J.,
Estimation of air/coating distribution coefficients for solid phase microextraction using retention indexes from linear temperature-programmed capillary gas chromatography. Application to the sampling and analysis of total petroleum hydrocarbons in air,
Anal. Chem., 1997, 69, 3, 402-408, https://doi.org/10.1021/ac960633p
. [all data]
Lai and Song, 1995
Lai, W.-C.; Song, C.,
Temperature-programmed retention indices for g.c. and g.c.-m.s. analysis of coal- and petroleum-derived liquid fuels,
Fuel, 1995, 74, 10, 1436-1451, https://doi.org/10.1016/0016-2361(95)00108-H
. [all data]
White, Douglas, et al., 1992
White, C.M.; Douglas, L.J.; Hackett, J.P.; Anderson, R.R.,
Characterization of synthetic gasoline from the chloromethane-zeolite reaction,
Energy Fuels, 1992, 6, 1, 76-82, https://doi.org/10.1021/ef00031a012
. [all data]
White, Hackett, et al., 1992
White, C.M.; Hackett, J.; Anderson, R.R.; Kail, S.; Spock, P.S.,
Linear temperature programmed retention indices of gasoline range hydrocarbons and chlorinated hydrocarbons on cross-linked polydimethylsiloxane,
J. Hi. Res. Chromatogr., 1992, 15, 2, 105-120, https://doi.org/10.1002/jhrc.1240150211
. [all data]
Huang, Bruechert, et al., 1987
Huang, T.-C.; Bruechert, L.J.; Hartman, T.G.; Rosen, R.T.; Ho, C.-T.,
Effect of lipids and carbohydrates on thermal generation of volatiles from commercial zein,
J. Agric. Food Chem., 1987, 35, 6, 985-990, https://doi.org/10.1021/jf00078a030
. [all data]
Hassoun, Pilling, et al., 1999
Hassoun, S.; Pilling, M.J.; Bartle, K.D.,
A catalogue of urban hydrocarbons for the city of Leeds: atmospheric monitoring of volatile organic compounds by thermal desorption-gas chromatography,
J. Environ. Monitor., 1999, 1, 5, 453-458, https://doi.org/10.1039/a904879k
. [all data]
Alasalvar, Taylor, et al., 2005
Alasalvar, C.; Taylor, K.D.A.; Shahidi, F.,
Comparison of volatiles of cultured and wild sea bream (Sparus aurata) during storage in ice by dynamic headspace analysis/gas chromatography-mass spectrometry,
J. Agric. Food Chem., 2005, 53, 7, 2616-2622, https://doi.org/10.1021/jf0483826
. [all data]
Chung, Fung, et al., 2005
Chung, H.Y.; Fung, P.K.; Kim, J.-S.,
Aroma impact components in commercial plain sufu,
J. Agric. Food Chem., 2005, 53, 5, 1684-1691, https://doi.org/10.1021/jf048617d
. [all data]
Le Guen, Prost, et al., 2000
Le Guen, S.; Prost, C.; Demaimay, M.,
Characterization of odorant compounds of mussels (Mytilus edulis) according to their origin using gas chromatography-olfactometry and gas chromatography-mass spectrometry,
J. Chromatogr. A, 2000, 896, 1-2, 361-371, https://doi.org/10.1016/S0021-9673(00)00729-9
. [all data]
Chung and Cadwallader, 1993
Chung, H.Y.; Cadwallader, K.R.,
Volatile components in blue crab (Callinectes sapidus) meat and processing by-product,
J. Food Sci., 1993, 58, 6, 1203-1207, https://doi.org/10.1111/j.1365-2621.1993.tb06148.x
. [all data]
Tanchotikul and Hsieh, 1989
Tanchotikul, U.; Hsieh, T.C.-Y.,
Volatile Flavor Components in Crayfish Waste,
J. Food Sci., 1989, 54, 6, 1515-1520, https://doi.org/10.1111/j.1365-2621.1989.tb05149.x
. [all data]
Hallier, Prost, et al., 2005
Hallier, A.; Prost, C.; Serot, T.,
Influence in rearing conditions on the volatile compounds of cooked fillets of Silurus glanis (European catfish),
J. Agric. Food Chem., 2005, 53, 18, 7204-7211, https://doi.org/10.1021/jf050559o
. [all data]
Chen and Feng, 2006
Chen, Y.; Feng, C.-I.,
Regerating the spent metal-contaminated cracking catalyst by ozalic acid,
J. Shanxi Univ. (Nat. Sci. Ed.), 2006, 29, 4, 414-420. [all data]
Tian, 1993
Tian, S.,
Analysis of the tower bottom oil of dimethylbenzene rectifying tower and C9 aromatic hydrocarbon fraction by capillary gas chromatography,
Chin. J. Chromatogr., 1993, 11, 4, 202-206. [all data]
Bermejo, Moinelo, et al., 1980
Bermejo, J.; Moinelo, S.R.; Suarez Canga, C.,
Calculo de indices de retencion a patir de DI y de la polaridad de la fase, Calculo de indices de retencion a patir de DI y de la polaridad de la fase, Instituto Nacional del Carbon y sus Derivados Francisco Pintado Fe (INCAR), La Corredoria, Oviedo, Espana, 1980, 13. [all data]
Sojak and Vigdergauz, 1978
Sojak, L.; Vigdergauz, M.S.,
Comparison of interpolation methods for the interpretation of retention data in gas chromatography,
J. Chromatogr., 1978, 148, 1, 159-167, https://doi.org/10.1016/S0021-9673(00)99332-4
. [all data]
Papazova and Pankova, 1975
Papazova, D.I.; Pankova, M.C.,
Identification of individual aromatic hydrocarbons in kerosene fraction (b.p. 150-250 °),
J. Chromatogr., 1975, 105, 2, 411-414, https://doi.org/10.1016/S0021-9673(01)82276-7
. [all data]
Ferrand, 1962
Ferrand, R.,
Gas phase chromatography using retention indices for the analysis of tars and their hydrogenation products,
Journees internationales d'etude des methodes de separation immediate at de chromatographie; Org. sur l'initiative du IX., 1962, 132-140. [all data]
Bramston-Cook, 2013
Bramston-Cook, R.,
Kovats indices for C2-C13 hydrocarbons and selected oxygenated/halocarbons with 100 % dimethylpolysiloxane columns, 2013, retrieved from http://lotusinstruments.com/monographs/List .... [all data]
Supelco, 2012
Supelco, CatalogNo. 24160-U,
Petrocol DH Columns. Catalog No. 24160-U, 2012, retrieved from http://www.sigmaaldrich.com/etc/medialib/docs/Supelco/Datasheet/1/w97949.Par.0001.File.tmp/w97949.pdf. [all data]
Leffingwell and Alford, 2011
Leffingwell, J.; Alford, E.D.,
Volatile constituents of the giant pufball mushroom (Calvatia gigantea),
Leffingwell Rep., 2011, 4, 1-17. [all data]
Zhang, Ding, et al., 2009
Zhang, X.; Ding, L.; Sun, Z.; Song, L.; Sun, T.,
Study on quantitative structure-retention relationships for hydrocarbons in FCC gasoline,
Chromatographia, 2009, 70, 3/4, 511-518, https://doi.org/10.1365/s10337-009-1174-0
. [all data]
Castel, Fernandez, et al., 2006
Castel, C.; Fernandez, X.; Lizzani-Cuvelier, L.; Perichet, C.; Lavoine, S.,
Characterization of the Chemical Composition of a Byproduct from Siam Benzoin Gum,
J. Agric. Food Chem., 2006, 54, 23, 8848-8854, https://doi.org/10.1021/jf061193y
. [all data]
Orav, Kailas, et al., 1999
Orav, A.; Kailas, T.; Muurisepp, M.; Kann, J.,
Composition of the oil from waste tires. 2. Fraction boiling at 160-180 0C,
Proc. Estonian Acad. Sci. Chem., 1999, 48, 3, 136-140. [all data]
Wang and Fingas, 1995
Wang, Z.; Fingas, M.,
Differentiation of the source of spilled oil and monitoring of the oil weathering process using gas chromatography-mass spectrometry,
J. Chromatogr. A, 1995, 712, 2, 321-343, https://doi.org/10.1016/0021-9673(95)00546-Y
. [all data]
Ciccioli, Cecinato, et al., 1992
Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Frattoni, M.; Liberti, A.,
Use of carbon adsorption traps combined with high resolution gas chromatography - mass spectrometry for the analysis of polar and non-polar C4-C14 hydrocarbons involved in photochemical smog formation,
J. Hi. Res. Chromatogr., 1992, 15, 2, 75-84, https://doi.org/10.1002/jhrc.1240150205
. [all data]
Hartgers, Damste, et al., 1992
Hartgers, W.A.; Damste, J.S.S.; de Leeuw, J.W.,
Identification of C2-C4 alkylated benzenes in flash pyrolysates of kerogens, coals and asphaltenes,
J. Chromatogr., 1992, 606, 2, 211-220, https://doi.org/10.1016/0021-9673(92)87027-6
. [all data]
Zenkevich and Ventura, 1991
Zenkevich, I.G.; Ventura, K.,
Gas Chromatographic Identification of Volatile Products of Thermal Degradation of Bitumen,
Zh. Prikl. Khim. (Rus.), 1991, 9, 1974-1979. [all data]
Cajka, Hajslova, et al., 2007
Cajka, T.; Hajslova, J.; Cochran, J.; Holadova, K.; Klimankova, E.,
Solid phase microextraction - comprehensive two dimensional gas chromatography - time-of-flight mass spectrometry for the analysis of honey volatiles,
J. Sep. Sci., 2007, 30, 4, 534-546, https://doi.org/10.1002/jssc.200600413
. [all data]
Blunden, Aneja, et al., 2005
Blunden, J.; Aneja, V.P.; Lonneman, W.A.,
Characterization of non-methane volatile organic compounds at swine facilities in eastern North Carolina,
Atm. Environ., 2005, 39, 36, 6707-6718, https://doi.org/10.1016/j.atmosenv.2005.03.053
. [all data]
Vichi, Pizzale, et al., 2005
Vichi, S.; Pizzale, L.; Conte, L.S.; Buxaderas, S.; L´opez-Tamames, E.,
Simultaneous determination of volatile and semi-volatile aromatic hydrocarbons in virgin olive oil by headspace solid-phase microextraction coupled to gas chromatography/mass spectrometry,
J. Chromatogr. A, 2005, 1090, 1-2, 146-154, https://doi.org/10.1016/j.chroma.2005.07.007
. [all data]
Cornwell and Cordano, 2003
Cornwell, E.; Cordano, G.,
Nueva proposicion para predecir datos de retencion obtenidos mediante cromatografia de gases de hidrocarburos derivados de las naftas,
Revista de la Sociedad Quimica de Mexico, 2003, 47, 1, 38-43. [all data]
Zhu and Wang, 2001
Zhu, X.; Wang, W.,
The relationship between partition coefficients of hydrocarbons and their retention indices,
Acta Scientific Circumstantiae, 2001, 21, 5, 631-633. [all data]
Timón, Ventanas, et al., 1998
Timón, M.L.; Ventanas, J.; Martín, L.; Tejeda, J.F.; García, C.,
Volatile compounds in supercritical carbon dioxide extracts of Iberian ham,
J. Agric. Food Chem., 1998, 46, 12, 5143-5150, https://doi.org/10.1021/jf980652v
. [all data]
Xiuhua, Zhang, et al., 1996
Xiuhua, Zh.; Zhang, L.; Che, X.,
Prediction of the Kovats retention indexes of polysubstituted alkylbenzenes,
Chin. J. Chromatogr., 1996, 14, 4, 244-248. [all data]
Ciccioli, Cecinato, et al., 1994
Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Brachetti, A.; Frattoni, M.; Sparapani, R.,
Composition and Distribution of Polar and Non-Polar VOCs in Urban, Rural, Forest and Remote Areas,
Eur Commission EUR, 1994, 549-568. [all data]
Matisová, Juranyiová, et al., 1991
Matisová, E.; Juranyiová, E.; Kurán, P.; Brandsteterová, E.; Kocan, A.; Holotík, S.,
Analysis of multicomponent mixtures by high-resolution capillary gas chromatography and combined gas chromatography-mass spectrometry. I. Aromatics in a hydrocarbon matrix,
J. Chromatogr., 1991, 552, 301-312, https://doi.org/10.1016/S0021-9673(01)95946-1
. [all data]
Waggott and Davies, 1984
Waggott, A.; Davies, I.W.,
Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]
Luning, de Rijk, et al., 1994
Luning, P.A.; de Rijk, T.; Wichers, H.J.; Roozen, J.P.,
Gas chromatography, mass spectrometry, and sniffing port analyses of volatile compounds of fresh bell peppers (Capsicum annuum) at different ripening stages,
J. Agric. Food Chem., 1994, 42, 4, 977-983, https://doi.org/10.1021/jf00040a027
. [all data]
Peng, Yang, et al., 1991
Peng, C.T.; Yang, Z.C.; Ding, S.F.,
Prediction of rentention idexes. II. Structure-retention index relationship on polar columns,
J. Chromatogr., 1991, 586, 1, 85-112, https://doi.org/10.1016/0021-9673(91)80028-F
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas Cp,liquid Constant pressure heat capacity of liquid Cp,solid Constant pressure heat capacity of solid EA Electron affinity IE (evaluated) Recommended ionization energy Pc Critical pressure S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.