Octane, 2,5-dimethyl-

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Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil430.0KN/AShuikin and Cherkashin, 1957Uncertainty assigned by TRC = 1. K; TRC
Tboil430.15KN/AKazanskii and Sergienko, 1939Uncertainty assigned by TRC = 2. K; TRC
Tboil429.15KN/ALevene and Marker, 1932Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Δvap11.7kcal/molN/AReid, 1972AC

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:


Gas Chromatography

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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

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillarySqualane100.922.Heinzen, Soares, et al., 1999 
CapillaryOV-160.924.Nijs and Jacobs, 1981He; Column length: 150. m; Column diameter: 0.50 mm
CapillarySqualane86.922.3Nabivach and Kirilenko, 1979N2; Column length: 50. m
CapillarySqualane86.922.4Nabivach and Kirilenko, 1979N2; Column length: 50. m
CapillarySqualane60.921.8Chretien and Dubois, 1976 
CapillarySqualane60.922.Matukuma, 1969N2; Column length: 91.4 m; Column diameter: 0.25 mm
CapillarySqualane80.922.Schomburg, 1967Ar; Column length: 100. m

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

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Column type Active phase I Reference Comment
CapillaryPetrocol DH-100932.6Haagen-Smit Laboratory, 1997He; 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

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Column type Active phase I Reference Comment
CapillaryCross-Linked Methylsilicone927.Khorasheh, Gray, et al., 19895. K/min; Tstart: 40. C; Tend: 300. C

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryPolydimethyl siloxane: CP-Sil 5 CB929.Bramston-Cook, 201360. m/0.25 mm/1.0 μm, Helium, 45. C @ 1.45 min, 3.6 K/min, 210. C @ 2.72 min

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

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Column type Active phase I Reference Comment
CapillaryOV-101922.Du and Liang, 2003Program: not specified
CapillaryPolydimethyl siloxane922.Junkes, Castanho, et al., 2003Program: not specified
CapillaryMethyl Silicone933.Spieksma, 1999Program: not specified
CapillarySqualane922.Petrov, 1984Program: not specified

References

Go To: Top, Phase change data, Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Shuikin and Cherkashin, 1957
Shuikin, N.I.; Cherkashin, M.I., Some Specific Characteristics of A Skeletal Nickel-Aluminum Catalyst in the Hydrogenolysis of A Cyclopentane Ring, Izv. Akad. Nauk SSSR, 1957, 1957, 1256. [all data]

Kazanskii and Sergienko, 1939
Kazanskii, B.A.; Sergienko, S.R., Zh. Obshch. Khim., 1939, 9, 447. [all data]

Levene and Marker, 1932
Levene, P.A.; Marker, R.E., J. Biol. Chem., 1932, 95, 1. [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]

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]

Nijs and Jacobs, 1981
Nijs, H.H.; Jacobs, P.A., On-Line Single Run Analysis of Effluents from a Fischer-Tropsch Reactor, J. Chromatogr. Sci., 1981, 19, 1, 40-45, https://doi.org/10.1093/chromsci/19.1.40 . [all data]

Nabivach and Kirilenko, 1979
Nabivach, V.M.; Kirilenko, A.V., The use of retention indices for identifying the components of crude benzene, Solid Fuel Chem. (Engl. Transl.), 1979, 13, 3, 82-87. [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]

Matukuma, 1969
Matukuma, A., Retention indices of alkanes through C10 and alkenes through C8 and relation between boiling points and retention data, Gas Chromatogr., Int. Symp. Anal. Instrum. Div Instrum Soc. Amer., 1969, 7, 55-75. [all data]

Schomburg, 1967
Schomburg, G., Struktur und Retentionsverhalten von Offenkettigen und Cyclischen Kohlenwasserstoffen und Deren Einfacher Substitutionsprodukte, Anal. Chim. Acta., 1967, 38, 45-64, https://doi.org/10.1016/S0003-2670(01)80560-2 . [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]

Khorasheh, Gray, et al., 1989
Khorasheh, F.; Gray, M.R.; Selucky, M.L., Correlation for Kováts retention index of C9-C26 monoalkyl and polymethyl alkanes and alkenes, J. Chromatogr., 1989, 481, 1-16, https://doi.org/10.1016/S0021-9673(01)96747-0 . [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]

Du and Liang, 2003
Du, Y.; Liang, Y., Data mining for seeking accurate quantitative relationship between molecular structure and GC retention indices of alkanes by projection pursuit, Comput. Biol. Chem., 2003, 27, 3, 339-353, https://doi.org/10.1016/S1476-9271(02)00081-6 . [all data]

Junkes, Castanho, et al., 2003
Junkes, B.S.; Castanho, R.D.M.; Amboni, C.; Yunes, R.A.; Heinzen, V.E.F., Semiempirical Topological Index: A Novel Molecular Descriptor for Quantitative Structure-Retention Relationship Studies, Internet Electronic Journal of Molecular Design, 2003, 2, 1, 33-49. [all data]

Spieksma, 1999
Spieksma, W., Determination of vapor liquid equilibrium from the Kovats retention index on dimethylsilicone using the Wilson mixing tool, J. Hi. Res. Chromatogr., 1999, 22, 10, 565-588, https://doi.org/10.1002/(SICI)1521-4168(19991001)22:10<565::AID-JHRC565>3.0.CO;2-2 . [all data]

Petrov, 1984
Petrov, A.A., Hydrocarbons of petroleum, Nauka (publishing house), Moscow, 1984, 263. [all data]


Notes

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