Pentane, 3-ethyl-2-methyl-

Formula: C₈H₁₈
Molecular weight: 114.2285
IUPAC Standard InChI: InChI=1S/C8H18/c1-5-8(6-2)7(3)4/h7-8H,5-6H2,1-4H3
IUPAC Standard InChIKey: DUPUVYJQZSLSJB-UHFFFAOYSA-N
CAS Registry Number: 609-26-7
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: 2-Methyl-3-ethylpentane; 3-Ethyl-2-methylpentane
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Gas phase thermochemistry data

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Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_gas	-50.48 ± 0.31	kcal/mol	Ccb	Prosen and Rossini, 1945	ALS

Constant pressure heat capacity of gas

C_p,gas (cal/mol*K)	Temperature (K)	Reference	Comment
32.051	200.	Scott D.W., 1974	Recommended values were obtained from the consistent correlation scheme for alkanes [ Scott D.W., 1974, 2, Scott D.W., 1974]. This approach gives a good agreement with experimental data available for alkanes. However, large uncertainties could be expected at high temperatures.; GT
42.610	273.15
45.90 ± 0.31	298.15
46.140	300.
58.480	400.
69.391	500.
78.800	600.
86.900	700.
93.901	800.
100.00	900.
105.20	1000.
109.80	1100.
113.70	1200.
117.00	1300.
121.00	1400.
123.00	1500.

Constant pressure heat capacity of gas

C_p,gas (cal/mol*K)	Temperature (K)	Reference	Comment
58.100	399.7	Barrow G.M., 1951	GT
65.201	461.9
71.599	522.2

Condensed phase thermochemistry data

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Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_liquid	-59.69 ± 0.31	kcal/mol	Ccb	Prosen and Rossini, 1945
Quantity	Value	Units	Method	Reference	Comment
Δ_cH°_liquid	-1307.59 ± 0.33	kcal/mol	Ccb	Prosen and Rossini, 1945	Corresponding Δ_fHº_liquid = -59.65 kcal/mol (simple calculation by NIST; no Washburn corrections)

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas Chromatography, References, Notes

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

Quantity	Value	Units	Method	Reference	Comment
T_boil	388.8 ± 0.2	K	AVG	N/A	Average of 14 out of 15 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
T_fus	158.1 ± 0.4	K	AVG	N/A	Average of 9 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
T_c	567.1 ± 0.5	K	N/A	Daubert, 1996
T_c	567.	K	N/A	Majer and Svoboda, 1985
T_c	567.02	K	N/A	McMicking and Kay, 1965	Uncertainty assigned by TRC = 0.4 K; TRC
Quantity	Value	Units	Method	Reference	Comment
P_c	26.6 ± 0.4	atm	N/A	Daubert, 1996
P_c	26.651	atm	N/A	McMicking and Kay, 1965	Uncertainty assigned by TRC = 0.4000 atm; TRC
Quantity	Value	Units	Method	Reference	Comment
V_c	0.442	l/mol	N/A	Daubert, 1996
Quantity	Value	Units	Method	Reference	Comment
ρ_c	2.26 ± 0.04	mol/l	N/A	Daubert, 1996
ρ_c	2.26	mol/l	N/A	McMicking and Kay, 1965	Uncertainty assigned by TRC = 0.04 mol/l; TRC
Quantity	Value	Units	Method	Reference	Comment
Δ_vapH°	9.216	kcal/mol	N/A	Majer and Svoboda, 1985
Δ_vapH°	9.20	kcal/mol	N/A	Reid, 1972	AC
Δ_vapH°	9.20 ± 0.02	kcal/mol	C	Osborne and Ginnings, 1947	AC
Δ_vapH°	9.207	kcal/mol	C	Osborne and Ginnings, 1947, 2	ALS

Enthalpy of vaporization

Δ_vapH (kcal/mol)	Temperature (K)	Method	Reference	Comment
7.870	388.8	N/A	Majer and Svoboda, 1985
8.94	326.	A,MM	Stephenson and Malanowski, 1987	Based on data from 311. to 390. K. See also Willingham, Taylor, et al., 1945.; AC

Enthalpy of vaporization

Δ_vapH = A exp(-βT_r) (1 − T_r)^β
Δ_vapH = Enthalpy of vaporization (at saturation pressure) (kcal/mol)
T_r = reduced temperature (T / T_c)

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Temperature (K)	A (kcal/mol)	β	T_c (K)	Reference	Comment
298. to 388.	13.05	0.2746	567.	Majer and Svoboda, 1985

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:

Reaction thermochemistry data

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Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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

= Pentane, 3-ethyl-2-methyl-

By formula: C₈H₁₈ = C₈H₁₈

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	0.05 ± 0.22	kcal/mol	Ciso	Prosen and Rossini, 1945, 2	liquid phase; Calculated from ΔHc

3 + = Pentane, 3-ethyl-2-methyl-

By formula: 3H₂ + C₈H₁₂ = C₈H₁₈

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-81.3 ± 0.1	kcal/mol	Chyd	Roth, Adamczak, et al., 1991	liquid phase

Gas Chromatography

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, References, Notes

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

View large format table.

Column type	Active phase	Temperature (C)	I	Reference	Comment
Capillary	Squalane	100.	762.	Heinzen, Soares, et al., 1999
Capillary	OV-101	0.	743.	Skrbic, 1997
Capillary	OV-101	0.	755.	Skrbic, 1997
Packed	Squalane	78.5	765.5	Zhang and Lu, 1996
Capillary	Squalane	25.	758.	Hilal, Carreira, et al., 1994
Capillary	OV-1	60.	763.	Engewald, Maurer, et al., 1989
Capillary	OV-101	40.	759.	Laub and Purnell, 1988
Capillary	OV-101	60.	762.	Laub and Purnell, 1988
Capillary	OV-101	80.	765.	Laub and Purnell, 1988
Capillary	Squalane	50.	760.3	Lunskii and Paizanskaya, 1988	He; Column length: 50. m; Column diameter: 0.22 mm
Capillary	Squalane	70.	762.75	Lunskii and Paizanskaya, 1988	He; Column length: 50. m; Column diameter: 0.22 mm
Capillary	OV-101	40.	760.2	Boneva and Dimov, 1986	100. m/0.27 mm/0.9 μm
Capillary	OV-101	50.	761.5	Boneva and Dimov, 1986	100. m/0.27 mm/0.9 μm
Capillary	OV-101	60.	762.7	Boneva and Dimov, 1986	100. m/0.27 mm/0.9 μm
Capillary	OV-101	70.	763.8	Boneva and Dimov, 1986	100. m/0.27 mm/0.9 μm
Capillary	OV-101	30.	758.	Chien, Furio, et al., 1983
Capillary	OV-101	40.	759.	Chien, Furio, et al., 1983
Capillary	OV-101	50.	760.	Chien, Furio, et al., 1983
Capillary	OV-101	60.	762.	Chien, Furio, et al., 1983
Capillary	OV-101	70.	763.	Chien, Furio, et al., 1983
Capillary	OV-101	80.	765.	Chien, Furio, et al., 1983
Capillary	DB-1	60.	763.2	Lubeck and Sutton, 1983	Column length: 60. m; Column diameter: 0.264 mm
Capillary	DB-1	60.	763.3	Lubeck and Sutton, 1983	60. m/0.259 mm/1. μm
Capillary	Squalane	50.	761.1	Bajus, Veselý, et al., 1979	Column length: 100. m; Column diameter: 0.25 mm
Packed	Triacontane	80.	763.	Castello and D'Amato, 1979	He, Chromosorb W AW (60-80 mesh); Column length: 3. m
Packed	Squalane	80.	764.	Castello and D'Amato, 1979	He, Chromosorb W AW (60-80 mesh); Column length: 3. m
Capillary	Squalane	60.	762.	Chretien and Dubois, 1976
Capillary	Squalane	50.	761.	Rijks and Cramers, 1974	N2; Column length: 100. m; Column diameter: 0.25 mm
Capillary	Squalane	70.	764.	Rijks and Cramers, 1974	N2; Column length: 100. m; Column diameter: 0.25 mm
Capillary	Vacuum Grease Oil (VM-4)	35.	756.	Sidorov, Petrova, et al., 1972
Capillary	Vacuum Grease Oil (VM-4)	45.	758.	Sidorov, Petrova, et al., 1972
Capillary	Vacuum Grease Oil (VM-4)	50.	759.	Sidorov, Petrova, et al., 1972
Capillary	Vacuum Grease Oil (VM-4)	58.	760.	Sidorov, Petrova, et al., 1972
Capillary	Vacuum Grease Oil (VM-4)	68.	762.	Sidorov, Petrova, et al., 1972
Capillary	Squalane	70.	761.5	Dimov and Schopov, 1971	Column length: 100. m; Column diameter: 0.25 mm
Packed	SE-30	80.	763.	Mitra and Saha, 1970	N2
Packed	Squalane	25.	759.	Mitra and Saha, 1970	N2
Packed	Squalane	80.	764.	Mitra and Saha, 1970	N2
Capillary	Squalane	40.	760.	Matukuma, 1969	N2; Column length: 91.4 m; Column diameter: 0.25 mm
Packed	Squalane	27.	758.	Hively and Hinton, 1968	He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
Packed	Squalane	49.	762.	Hively and Hinton, 1968	He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
Packed	Squalane	67.	763.	Hively and Hinton, 1968	He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
Packed	Squalane	86.	765.	Hively and Hinton, 1968	He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
Capillary	Squalane	30.	759.	Tourres, 1967	H2; Column length: 100. m; Column diameter: 0.25 mm
Capillary	Squalane	50.	762.	Tourres, 1967	H2; Column length: 100. m; Column diameter: 0.25 mm
Capillary	Squalane	70.	765.	Tourres, 1967	H2; Column length: 100. m; Column diameter: 0.25 mm
Packed	Squalane	22.	758.	Evans, 1966	Untreated celite; Column length: 1.8 m
Packed	Squalane	40.	760.	Evans, 1966	Untreated celite; Column length: 1.8 m
Packed	Squalane	55.	762.	Evans, 1966	Untreated celite; Column length: 1.8 m
Packed	Squalane	70.	764.	Evans, 1966	Untreated celite; Column length: 1.8 m

Kovats' RI, non-polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	OV-101	755.	Hayes and Pitzer, 1982	110. m/0.25 mm/0.20 μm, He, 1. K/min; T_start: 35. C; T_end: 200. C
Capillary	Apiezon L	760.	Louis, 1971	N2, 1. K/min; Column length: 50. m; Column diameter: 0.25 mm; T_start: 60. C

Kovats' RI, non-polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Petrocol DH-100	759.	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)

Van Den Dool and Kratz RI, non-polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Petrocol DH	762.4	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	SPB-1	755.95	LECO Corporation, 2003	30. m/0.25 mm/0.25 μm, 40. C @ 2. min, 10. K/min, 250. C @ 2. min
Capillary	DB-5	760.4	Xu, van Stee, et al., 2003	30. m/0.25 mm/1. μm, He, 2.5 K/min; T_start: 50. C; T_end: 200. C
Capillary	OV-101	759.7	Yin, Liu, et al., 2001	N2, 1. K/min; Column length: 80. m; Column diameter: 0.22 mm; T_start: 30. C; T_end: 130. C
Capillary	Petrocol DH	757.28	Subramaniam, Bochniak, et al., 1994	100. m/0.25 mm/0.5 μm, He, 1. K/min; T_start: 30. C; T_end: 220. C
Capillary	Petrocol DH	758.	White, Hackett, et al., 1992	100. m/0.25 mm/0.5 μm, He, 1. K/min; T_start: 30. C; T_end: 220. C
Capillary	OV-101	755.	Hayes and Pitzer, 1981	108. m/0.25 mm/0.2 μm, 1. K/min; T_start: 35. C; T_end: 200. C

Van Den Dool and Kratz RI, non-polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	OV-101	760.	Wu and Lu, 1984	Program: not specified

Normal alkane RI, non-polar column, isothermal

View large format table.

Column type	Active phase	Temperature (C)	I	Reference	Comment
Capillary	OV-101	40.	760.	Li and Deng, 1998	N2; Column length: 51. m; Column diameter: 0.25 mm
Capillary	OV-101	50.	761.	Wu and Lu, 1984, 2
Capillary	OV-101	70.	764.	Wu and Lu, 1984, 2
Capillary	Squalane	100.	767.	Dimov N., 1976
Capillary	Squalane	70.	764.	Dimov N., 1976
Capillary	Squalane	86.	756.	Vigdergauz and Martynov, 1971	He; Column length: 150. m; Column diameter: 0.35 mm

Normal alkane RI, non-polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Polydimethyl siloxane: CP-Sil 5 CB	762.	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	762.	Supelco, 2012	100. m/0.25 mm/0.50 μm, Helium, 20. C @ 15. min, 15. K/min, 220. C @ 30. min
Capillary	OV-101	759.	Orav, Kailas, et al., 1999	50. m/0.20 mm/0.50 μm, Helium, 30. C @ 6. min, 1. K/min; T_end: 100. C

Normal alkane RI, non-polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	OV-101	763.	Du and Liang, 2003	Program: not specified
Capillary	Polydimethyl siloxane	762.	Junkes, Castanho, et al., 2003	Program: not specified
Capillary	Polydimethyl siloxanes	760.	Yin, Guo, et al., 2001	Program: not specified
Capillary	Methyl Silicone	760.	Xu, Chu, et al., 1995	Program: not specified
Capillary	OV-101	755.	Skrbic and Cvejanov, 1993	Program: not specified
Capillary	Squalane	759.	Petrov, 1984	Program: not specified
Capillary	OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc.	755.	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.	762.	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, Reaction thermochemistry data, Gas Chromatography, Notes

Prosen and Rossini, 1945
Prosen, E.J.; Rossini, F.D., Heats of combustion and formation of the paraffin hydrocarbons at 25° C, J. Res. NBS, 1945, 263-267. [all data]

Scott D.W., 1974
Scott D.W., Chemical Thermodynamic Properties of Hydrocarbons and Related Substances. Properties of the Alkane Hydrocarbons, C1 through C10 in the Ideal Gas State from 0 to 1500 K. U.S. Bureau of Mines, Bulletin 666, 1974. [all data]

Scott D.W., 1974, 2
Scott D.W., Correlation of the chemical thermodynamic properties of alkane hydrocarbons, J. Chem. Phys., 1974, 60, 3144-3165. [all data]

Barrow G.M., 1951
Barrow G.M., Experimental vapor heat capacities and heats of vaporization of seven octanes, J. Am. Chem. Soc., 1951, 73, 1824-1826. [all data]

Daubert, 1996
Daubert, T.E., Vapor-Liquid Critical Properties of Elements and Compounds. 5. Branched Alkanes and Cycloalkanes, J. Chem. Eng. Data, 1996, 41, 365-372. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

McMicking and Kay, 1965
McMicking, J.H.; Kay, W.B., Vapor Pressures and Saturated Liquid and Vapor Densities of The Isomeric Heptanes and Isomeric Octanes, Proc., Am. Pet. Inst., Sect. 3, 1965, 45, 75-90. [all data]

Reid, 1972
Reid, Robert C., Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00, AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637 . [all data]

Osborne and Ginnings, 1947
Osborne, Nathan S.; Ginnings, Defoe C., Measurements of heat of vaporization and heat capacity of a number of hydrocarbons, J. RES. NATL. BUR. STAN., 1947, 39, 5, 453-17, https://doi.org/10.6028/jres.039.031 . [all data]

Osborne and Ginnings, 1947, 2
Osborne, N.S.; Ginnings, D.C., Measurements of heat of vaporization and heat capacity of a number of hydrocarbons, J. Res. NBS, 1947, 39, 453-477. [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]

Willingham, Taylor, et al., 1945
Willingham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D., Vapor pressures and boiling points of some paraffin, alkylcyclopentane, alkylcyclohexane, and alkylbenzene hydrocarbons, J. RES. NATL. BUR. STAN., 1945, 35, 3, 219-17, https://doi.org/10.6028/jres.035.009 . [all data]

Prosen and Rossini, 1945, 2
Prosen, E.J.; Rossini, F.D., Heats of isomerization of the 18 octanes, J. Res. NBS, 1945, 34, 163-174. [all data]

Roth, Adamczak, et al., 1991
Roth, W.R.; Adamczak, O.; Breuckmann, R.; Lennartz, H.-W.; Boese, R., Die Berechnung von Resonanzenergien; das MM2ERW-Kraftfeld, Chem. Ber., 1991, 124, 2499-2521. [all data]

Heinzen, Soares, et al., 1999
Heinzen, V.E.F.; Soares, M.F.; Yunes, R.A., Semi-empirical topological method for the prediction of the chromatographic retention of cis- and trans-alkene isomers and alkanes, J. Chromatogr. A, 1999, 849, 2, 495-506, https://doi.org/10.1016/S0021-9673(99)00530-0 . [all data]

Skrbic, 1997
Skrbic, B.D., Unified retention concept -- statistical treatment of Kováts retention index, J. Chromatogr. A, 1997, 764, 2, 257-264, https://doi.org/10.1016/S0021-9673(96)00955-7 . [all data]

Zhang and Lu, 1996
Zhang, X.; Lu, P., Unified equation between Kováts indices on different stationary phases for select types of compounds, J. Chromatogr. A, 1996, 731, 1-2, 187-199, https://doi.org/10.1016/0021-9673(95)01213-3 . [all data]

Hilal, Carreira, et al., 1994
Hilal, S.H.; Carreira, L.A.; Karickhoff, S.W.; Melton, C.M., Estimation of Gas-Liquid Chromatographic Retention Times from Molecular Structure, J. Chromatogr. A, 1994, 662, 2, 269-280, https://doi.org/10.1016/0021-9673(94)80515-6 . [all data]

Engewald, Maurer, et al., 1989
Engewald, W.; Maurer, T.; Schiefke, A., Investigation of isomeric hydrocarbons by gas-solid chromatography on graphitized thermal carbon black, Pure Appl. Chem., 1989, 61, 11, 2001-2004, https://doi.org/10.1351/pac198961112001 . [all data]

Laub and Purnell, 1988
Laub, R.J.; Purnell, J.H., Specific retention volumes, retention indices, and family-plot regressions of aliphatic, alicyclic, and aromatic hydrocarbon solutes with OV-101 poly (dimethylsiloxane) stationary phase, J. Hi. Res. Chromatogr. Chromatogr. Comm., 1988, 11, 9, 649-660, https://doi.org/10.1002/jhrc.1240110908 . [all data]

Lunskii and Paizanskaya, 1988
Lunskii, M.Kh.; Paizanskaya, I.L., Identification of hydrocarbons C₁-C₉ of petrol fractions of oils and condensates in the use of capillary columns with dinonylphthalate, Zh. Anal. Khim., 1988, 43, 127-135. [all data]

Boneva and Dimov, 1986
Boneva, S.; Dimov, N., Unified retention index of hydrocarbons separated on dimethylsilicone OV-101, Chromatographia, 1986, 21, 12, 697-700, https://doi.org/10.1007/BF02313682 . [all data]

Chien, Furio, et al., 1983
Chien, C.-F.; Furio, D.L.; Kopecni, M.M.; Laub, R.J., Specific Retention Volumes and Retention Indices of Selected Hydrocarbon Solutes with OV-101 and SP-2100 Polydimethylsiloxane Solvents, J. Hi. Res. Chromatogr. Chromatogr. Comm., 1983, 6, 10, 577-580, https://doi.org/10.1002/jhrc.1240061013 . [all data]

Lubeck and Sutton, 1983
Lubeck, A.J.; Sutton, DL., Kovats retention indices of selected hydrocarbons through C₁₀ on bonded phase fused silica capillaries, J. Hi. Res. Chromatogr. Chromatogr. Comm., 1983, 6, 6, 328-332, https://doi.org/10.1002/jhrc.1240060612 . [all data]

Bajus, Veselý, et al., 1979
Bajus, M.; Veselý, V.; Leclercq, P.A.; Rijks, J.A., Steam cracking of hydrocarbons. 1. Pyrolysis of heptane, Ind. Eng. Chem. Prod. Res. Dev., 1979, 18, 1, 30-37, https://doi.org/10.1021/i360069a007 . [all data]

Castello and D'Amato, 1979
Castello, G.; D'Amato, G., Use of Linear and Branched-Chain Paraffinic Liquid Phases as Non-Polar Reference Materials in Gas Chromatography, J. Chromatogr., 1979, 175, 1, 27-35, https://doi.org/10.1016/S0021-9673(00)86400-6 . [all data]

Chretien and Dubois, 1976
Chretien, J.R.; Dubois, J.-E., New Perspectives in the Prediction of Kovats Indices, J. Chromatogr., 1976, 126, 171-189, https://doi.org/10.1016/S0021-9673(01)84071-1 . [all data]

Rijks and Cramers, 1974
Rijks, J.A.; Cramers, C.A., High precision capillary gas chromatography of hydrocarbons, Chromatographia, 1974, 7, 3, 99-106, https://doi.org/10.1007/BF02269819 . [all data]

Sidorov, Petrova, et al., 1972
Sidorov, R.I.; Petrova, V.I.; Ivanova, M.P., Qualitative analysis of wide-boiling fraction C5-C10 with capillary chromatography in Processes in chromatographic columns. Vol.17, 1972, 14-25. [all data]

Dimov and Schopov, 1971
Dimov, N.; Schopov, D., Empirische korrektion der physikalisch-chemischen retentionsindexe von kohlenwasserstoffen auf squalan, J. Chromatogr., 1971, 63, 223-228, https://doi.org/10.1016/S0021-9673(01)85634-X . [all data]

Mitra and Saha, 1970
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Notes

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Symbols used in this document:

C_p,gas	Constant pressure heat capacity of gas
P_c	Critical pressure
T_boil	Boiling point
T_c	Critical temperature
T_fus	Fusion (melting) point
V_c	Critical volume
Δ_cH°_liquid	Enthalpy of combustion of liquid at standard conditions
Δ_fH°_gas	Enthalpy of formation of gas at standard conditions
Δ_fH°_liquid	Enthalpy of formation of liquid at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions
Δ_vapH	Enthalpy of vaporization
Δ_vapH°	Enthalpy of vaporization at standard conditions
ρ_c	Critical density

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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