Pentane, 2,2,3,3-tetramethyl-

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Gas 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 by: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
33.100200.Scott D.W., 1974Recommended 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.
46.489273.15
50.68 ± 0.48298.15
50.989300.
66.310400.
79.520500.
90.901600.
100.80700.
109.40800.
116.90900.
123.601000.
129.501100.
134.801200.
140.001300.
144.001400.
148.001500.

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
CapillarySqualane100.856.Heinzen, Soares, et al., 1999 
CapillarySqualane50.851.7Lunskii and Paizanskaya, 1988He; Column length: 50. m; Column diameter: 0.22 mm
CapillarySqualane70.857.1Lunskii and Paizanskaya, 1988He; Column length: 50. m; Column diameter: 0.22 mm
CapillaryDB-160.847.7Lubeck and Sutton, 1983Column length: 60. m; Column diameter: 0.264 mm
CapillaryDB-160.847.8Lubeck and Sutton, 198360. m/0.259 mm/1. μm
CapillarySqualane60.855.Chretien and Dubois, 1976 
CapillarySqualane60.855.8Chretien and Dubois, 1976 
CapillarySqualane50.852.Rijks and Cramers, 1974N2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane70.858.Rijks and Cramers, 1974N2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane70.852.7Dimov and Schopov, 1971Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane60.856.Matukuma, 1969N2; Column length: 91.4 m; Column diameter: 0.25 mm
CapillarySqualane30.847.Tourres, 1967H2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane50.850.Tourres, 1967H2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane70.853.Tourres, 1967H2; Column length: 100. m; Column diameter: 0.25 mm

Kovats' RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryApiezon L862.Louis, 1971N2, 1. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tstart: 60. C

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

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Column type Active phase I Reference Comment
CapillarySqualane854.Korol and Lysyuk, 1980Program: not specified

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

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Column type Active phase I Reference Comment
CapillaryPetrocol DH844.White, Hackett, et al., 1992100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C

Normal alkane RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryMethyl Silicone50.852.N/AN2; Column length: 74.6 m; Column diameter: 0.28 mm

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryPetrocol DH849.Supelco, 2012100. m/0.25 mm/0.50 μm, Helium, 20. C @ 15. min, 15. K/min, 220. C @ 30. min
CapillarySE-54852.Guan, Li, et al., 199560. C @ 2. min, 4. K/min; Column length: 50. m; Column diameter: 0.32 mm; Tend: 200. C

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

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Column type Active phase I Reference Comment
CapillaryOV-101855.Du and Liang, 2003Program: not specified
CapillaryPolydimethyl siloxane856.Junkes, Castanho, et al., 2003Program: not specified

References

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

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]

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]

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]

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]

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]

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]

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]

Tourres, 1967
Tourres, D.A., Structure moléculaire et rétention en chromatographie en phase gazeuse. Influence de la température sur l'indice de rétention d'alcanes isomères, J. Chromatogr., 1967, 30, 357-377, https://doi.org/10.1016/S0021-9673(00)84168-0 . [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]

Korol and Lysyuk, 1980
Korol, A.N.; Lysyuk, L.S., A New Thermodynamic Method for Calculating the Retention Indices of Isoalkanes on Squalane, Theor. Exp. Chem. (Engl. Transl.), 1980, 6, 577-584. [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]

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]

Guan, Li, et al., 1995
Guan, Y.; Li, L.; Zhou, L., Live retention database for compound identification in capillary gas chromatography, Chin. J. Chromatogr., 1995, 13, 5, 851-857. [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]


Notes

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