Quinoline
- Formula: C9H7N
- Molecular weight: 129.1586
- IUPAC Standard InChIKey: SMWDFEZZVXVKRB-UHFFFAOYSA-N
- CAS Registry Number: 91-22-5
- 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: B 500; Benzopyridine; Benzo[b]Pyridine; Leucol; Leukol; Quinolin; 1-Azanaphthalene; 1-Benzazine; Chinoline; Chinoleine; Chinolin; Leucoline; USAF EK-218; UN 2656; NSC 3396
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 47.925 | kcal/mol | Ccr | Steele, Archer, et al., 1988 |
Condensed phase thermochemistry data
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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 | 33.75 ± 0.22 | kcal/mol | Ccr | Steele, Archer, et al., 1988 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1119.3 ± 0.2 | kcal/mol | Ccr | Steele, Archer, et al., 1988 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 52.514 | cal/mol*K | N/A | Steele, Archer, et al., 1988 | DH |
S°liquid | 52.507 | cal/mol*K | N/A | Steele, Chirico, et al., 1986 | DH |
S°liquid | 51.89 | cal/mol*K | N/A | Parks, Todd, et al., 1936 | Extrapolation below 90 K, 54.94 J/mol*K.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
46.580 | 298.15 | Steele, Archer, et al., 1988 | T = 5 to 500 K.; DH |
46.582 | 298.15 | Steele, Chirico, et al., 1986 | T = 6 to 450 K.; DH |
48.71 | 298. | Tschamler and Krischai, 1951 | DH |
47.610 | 298.1 | Parks, Todd, et al., 1936 | T = 90 to 300 K.; DH |
46.10 | 302.5 | de Kolossowsky and Udowenko, 1934 | DH |
46.10 | 302.4 | Kolosovskii and Udovenko, 1934 | DH |
39.29 | 290. | Radulescu and Jula, 1934 | DH |
45.51 | 283. | Bramley, 1916 | Mean value, 0 to 20°C.; DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 511. ± 2. | K | AVG | N/A | Average of 18 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 256. ± 6. | K | AVG | N/A | Average of 19 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 258.360 | K | N/A | Steele, Archer, et al., 1988, 2 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.002 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 782.15 | K | N/A | Ambrose, 1963 | Uncertainty assigned by TRC = 3. K; TRC |
Tc | 800.15 | K | N/A | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 3. K; TRC |
Tc | 793.55 | K | N/A | Livingston, Morgan, et al., 1908 | Uncertainty assigned by TRC = 10. K; calculation based on extrap. of density and surface tension; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 57.04 | atm | N/A | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 3.0000 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 14.18 ± 0.048 | kcal/mol | V | Steele, Archer, et al., 1988 | ALS |
ΔvapH° | 14.2 | kcal/mol | N/A | Steele, Archer, et al., 1988 | DRB |
ΔvapH° | 13.9 | kcal/mol | GS | Van de Rostyne and Prausnitz, 1980 | Based on data from 286. to 309. K.; AC |
ΔvapH° | 11.34 | kcal/mol | C | Glaser and Ruland, 1957 | ALS |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
387.2 | 0.022 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
11.2 | 588. | DSC | Back, Grzyll, et al., 1996 | Based on data from 573. to 668. K.; AC |
11.1 | 519. | N/A | Lee, Chen, et al., 1992 | Based on data from 504. to 616. K.; AC |
13.8 ± 0.02 | 320. | IP,EB | Steele, Archer, et al., 1988 | Based on data from 298. to 559. K.; AC |
13.3 ± 0.02 | 360. | IP,EB | Steele, Archer, et al., 1988 | Based on data from 298. to 559. K.; AC |
12.7 ± 0.02 | 400. | IP,EB | Steele, Archer, et al., 1988 | Based on data from 298. to 559. K.; AC |
12.1 ± 0.02 | 440. | IP,EB | Steele, Archer, et al., 1988 | Based on data from 298. to 559. K.; AC |
11.6 ± 0.05 | 480. | IP,EB | Steele, Archer, et al., 1988 | Based on data from 298. to 559. K.; AC |
11.0 ± 0.07 | 520. | IP,EB | Steele, Archer, et al., 1988 | Based on data from 298. to 559. K.; AC |
11.0 | 478. | A | Stephenson and Malanowski, 1987 | Based on data from 463. to 794. K.; AC |
11.8 | 448. | EB | Stephenson and Malanowski, 1987 | Based on data from 433. to 511. K. See also Malanowski, 1961.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
437.82 to 511.09 | 3.93472 | 1667.104 | -87.085 | Malanowski, 1961, 2 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.5631 | 257.93 | Mastrangelo, 1957 | DH |
2.548 | 258.4 | Domalski and Hearing, 1996 | AC |
2.5810 | 258.4 | Parks, Todd, et al., 1936 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.988 | 258.4 | Parks, Todd, et al., 1936 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
0.074 | 220. | Domalski and Hearing, 1996 | CAL |
9.864 | 258.4 |
Temperature of phase transition
Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|
220.093 | crystaline, II | crystaline, I | Steele, Chirico, et al., 1986 | DH |
258.369 | crystaline, I | liquid | Steele, Chirico, et al., 1986 | DH |
290. | liquid | liquid | Jalabert, Robert, et al., 1990 | DH |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.01630 | 220.000 | crystaline, II | crystaline, I | Steele, Archer, et al., 1988 | DH |
2.548495 | 258.369 | crystaline, I | liquid | Steele, Archer, et al., 1988 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.0741 | 220.000 | crystaline, II | crystaline, I | Steele, Archer, et al., 1988 | DH |
9.864 | 258.369 | crystaline, I | liquid | Steele, Archer, et al., 1988 | DH |
Reaction thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: C9H6N- + H+ = C9H7N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 385.6 ± 2.0 | kcal/mol | TDEq | Meot-ner, Liebman, et al., 1988 | gas phase; anchored to 88MEO scale, not the "87 acidity scale". The Kiefer, Zhang, et al., 1997 BDE is for ortho. |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 376.9 ± 2.0 | kcal/mol | TDEq | Meot-ner, Liebman, et al., 1988 | gas phase; anchored to 88MEO scale, not the "87 acidity scale". The Kiefer, Zhang, et al., 1997 BDE is for ortho. |
Henry's Law data
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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 |
---|---|---|---|
3700. | 5400. | X | N/A |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C9H7N+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.63 ± 0.02 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 227.8 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 220.2 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.62 | PE | Schafer, Schweig, et al., 1973 | LLK |
8.62 | PE | Brogli, Heilbronner, et al., 1972 | LLK |
8.62 | PE | Dewar and Worley, 1969 | RDSH |
8.67 ± 0.05 | PE | Eland and Danby, 1968 | RDSH |
8.3 | PI | Terenin, 1961 | RDSH |
8.62 | PE | Van Den Ham and Van Der Meer, 1972 | Vertical value; LLK |
De-protonation reactions
By formula: C9H6N- + H+ = C9H7N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 385.6 ± 2.0 | kcal/mol | TDEq | Meot-ner, Liebman, et al., 1988 | gas phase; anchored to 88MEO scale, not the "87 acidity scale". The Kiefer, Zhang, et al., 1997 BDE is for ortho.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 376.9 ± 2.0 | kcal/mol | TDEq | Meot-ner, Liebman, et al., 1988 | gas phase; anchored to 88MEO scale, not the "87 acidity scale". The Kiefer, Zhang, et al., 1997 BDE is for ortho.; B |
IR Spectrum
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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
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Additional Data
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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, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, 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
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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 | NIST Mass Spectrometry Data Center, 1998. |
NIST MS number | 291454 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Steele, Archer, et al., 1988
Steele, W.V.; Archer, D.G.; Chirico, R.D.; Collier, W.B.; Hossenlopp, I.A.; Nguyen, A.; Smith, N.K.; Gammon, B.E.,
The thermodynamic properties of quinoline and isoquinoline,
J. Chem. Thermodyn., 1988, 20, 1233-1264. [all data]
Steele, Chirico, et al., 1986
Steele, W.V.; Chirico, R.D.; Collier, W.B.; Hossenlopp, I.A.; Nguyen, A.; Strube, M.M.,
Thermochemical and thermophysical properties of organic nitrogen compounds found in fossil materials,
NIPER Report, 1986, 188, 112p. [all data]
Parks, Todd, et al., 1936
Parks, G.S.; Todd, S.S.; Moore, W.A.,
Thermal data on organic compounds. XVI. Some heat capacity, entropy and free energy data for typical benzene derivatives and heterocyclic compounds,
J. Am. Chem. Soc., 1936, 58, 398-401. [all data]
Tschamler and Krischai, 1951
Tschamler, H.; Krischai, H.,
Chinolin-m-Kresol, ein stark negatives System,
Monatsh. Chem., 1951, 82, 259-270. [all data]
de Kolossowsky and Udowenko, 1934
de Kolossowsky, N.; Udowenko, W.W.,
Determination des chaleurs specifiques des liquides,
Compt. rend., 1934, 198, 1394-1395. [all data]
Kolosovskii and Udovenko, 1934
Kolosovskii, N.A.; Udovenko, W.W.,
Specific heat of liquids. II.,
Zhur. Obshchei Khim., 1934, 4, 1027-1033. [all data]
Radulescu and Jula, 1934
Radulescu, D.; Jula, O.,
Beiträge zur Bestimmung der Abstufung der Polarität des Aminstickstoffes in den organischen Verbindungen,
Z. Phys. Chem., 1934, B26, 390-393. [all data]
Bramley, 1916
Bramley, A.,
The study of binary mixtures. Part IV. Heats of reaction and specific heats,
J. Chem. Soc. (London), 1916, 109, 496-515. [all data]
Steele, Archer, et al., 1988, 2
Steele, W.V.; Archer, D.G.; Chirico, R.D.; Collier, W.B.; Hossenlopp, I.A.; Nguyen, A.; Smith, N.K.; Gammon, B.E.,
The thermodynamic properties of quinoline and isoquinoline,
J. Chem. Thermodyn., 1988, 20, 1233-64. [all data]
Ambrose, 1963
Ambrose, D.,
Critical Temperatures of Some Phenols and Other Organic Compounds,
Trans. Faraday Soc., 1963, 59, 1988. [all data]
Glaser and Ruland, 1957
Glaser, F.; Ruland, H.,
Untersuchungsen über dampfdruckkurven und kritische daten einiger technisch wichtiger organischer substanzen,
Chem. Ing. Techn., 1957, 29, 772. [all data]
Livingston, Morgan, et al., 1908
Livingston, J.; Morgan, R.; Higgins, E.,
The Weight of Falling Drops and Tate's Laws. Determination of Molecular Weights and Critical Temp. of Liquids Using Drop Weights: II.,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1908, 64, 170. [all data]
Van de Rostyne and Prausnitz, 1980
Van de Rostyne, Catherine; Prausnitz, John M.,
Vapor pressures of some nitrogen-containing, coal-derived liquids,
J. Chem. Eng. Data, 1980, 25, 1, 1-3, https://doi.org/10.1021/je60084a008
. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Back, Grzyll, et al., 1996
Back, Dwight D.; Grzyll, Lawrence R.; Corrigan, Mary,
DSC enthalpy of vaporization measurements of high temperature two-phase working fluids,
Thermochimica Acta, 1996, 272, 53-63, https://doi.org/10.1016/0040-6031(95)02615-0
. [all data]
Lee, Chen, et al., 1992
Lee, Chang Ha; Chen, Quen; Mohamed, Rahoma S.; Holder, Gerald D.,
Vapor-liquid equilibria in the system of toluene/aniline, aniline/naphthalene, and naphthalene/quinoline,
J. Chem. Eng. Data, 1992, 37, 2, 179-183, https://doi.org/10.1021/je00006a011
. [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]
Malanowski, 1961
Malanowski, S.,
Bull. Acad. Pol. Sci. Ser. Sci. Chim., 1961, 9, 71. [all data]
Malanowski, 1961, 2
Malanowski, S.,
Vapour Pressures and Boiling Temperatures of Some Quinoline Bases,
Bull. Acad. Pol. Sci. Ser. Sci. Chim., 1961, 9, 2, 71-76. [all data]
Mastrangelo, 1957
Mastrangelo, S.V.R.,
Adiabatic calorimeter for determination of cryoscopic data,
Anal. Chem., 1957, 29(5), 841-845. [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]
Jalabert, Robert, et al., 1990
Jalabert, D.; Robert, J.B.; Roux-Buisson, H.,
Comportment anormal en temperature de la quinline liquide,
Calorim. Anal. Therm., 1990, 20-21, 441-447. [all data]
Meot-ner, Liebman, et al., 1988
Meot-ner, M.; Liebman, J.F.; Kafafi, S.A.,
Ionic Probes of Aromaticity in Annelated Rings,
J. Am. Chem. Soc., 1988, 110, 18, 5937, https://doi.org/10.1021/ja00226a001
. [all data]
Kiefer, Zhang, et al., 1997
Kiefer, J.H.; Zhang, Q.; Kern, R.D.; Yao, J.; Jursic, B.,
Pyrolysis of Aromatic Azines: Pyrazine, Pyrimidine, and Pyridine,
J. Phys. Chem. A, 1997, 101, 38, 7061, https://doi.org/10.1021/jp970211z
. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Schafer, Schweig, et al., 1973
Schafer, W.; Schweig, A.; Markl, G.; Heier, K.-H.,
Zur elektronenstruktur der lambda3- und lambda5-phosphanaphthaline--ungewohnlich grosse MO destabilisierungen,
Tetrahedron Lett., 1973, 3743. [all data]
Brogli, Heilbronner, et al., 1972
Brogli, F.; Heilbronner, E.; Kobayashi, T.,
Photoelectron spectra of azabenzenes and azanaphthalenes: II. A reinvestigation of azanaphthalenes by high-resolution photoelectron spectroscopy,
Helv. Chim. Acta, 1972, 55, 274. [all data]
Dewar and Worley, 1969
Dewar, M.J.S.; Worley, S.D.,
Photoelectron spectra of molecules. II.The ionization potentials of azabenzenes and azanaphthalenes,
J. Chem. Phys., 1969, 51, 263. [all data]
Eland and Danby, 1968
Eland, J.H.D.; Danby, C.J.,
Inner ionization potentials of aromatic compounds,
Z. Naturforsch., 1968, 23a, 355. [all data]
Terenin, 1961
Terenin, A.,
Charge transfer in organic solids, induced by light,
Proc. Chem. Soc., London, 1961, 321. [all data]
Van Den Ham and Van Der Meer, 1972
Van Den Ham, D.M.W.; Van Der Meer, D.,
Perfluoro effect in the photoelectron spectra of quinoline and isoquinoline,
Chem. Phys. Lett., 1972, 15, 549. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid 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 Ttriple Triple point temperature Ttrs Temperature of phase transition d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - 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.
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