Hexane, 2,2,5,5-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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas-68.0kcal/molCcbDoering, Roth, et al., 1989 

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:
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

Quantity Value Units Method Reference Comment
Tboil410.7KN/AWeast and Grasselli, 1989BS
Tboil409.65KN/ADarwent and Steacie, 1949Uncertainty assigned by TRC = 1.5 K; TRC
Tboil410.6KN/AHoward, Mears, et al., 1947Uncertainty assigned by TRC = 0.05 K; TRC
Quantity Value Units Method Reference Comment
Tfus258. ± 10.KAVGN/AAverage of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Tc581.4 ± 0.5KN/ADaubert, 1996 
Tc581.45KN/AAmbrose and Townsend, 1968Uncertainty assigned by TRC = 0.1 K; TRC
Quantity Value Units Method Reference Comment
Pc21.6 ± 0.4atmN/ADaubert, 1996 
Pc21.57atmN/AAmbrose and Townsend, 1968Uncertainty assigned by TRC = 0.099 atm; TRC
Quantity Value Units Method Reference Comment
Δvap10.4kcal/molN/AReid, 1972AC

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Mass spectrum (electron ionization)

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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

Spectrum

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Mass spectrum
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Additional Data

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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, 1990.
NIST MS number 114265

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Gas Chromatography

Go To: Top, Gas phase thermochemistry data, Phase change data, 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

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Column type Active phase Temperature (C) I Reference Comment
CapillarySqualane100.820.Heinzen, Soares, et al., 1999 
CapillarySqualane60.820.2Chretien and Dubois, 1976 
CapillarySqualane60.820.Matukuma, 1969N2; Column length: 91.4 m; Column diameter: 0.25 mm

Kovats' RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryDB-5870.Ramarathnam, Rubin, et al., 1993He, 30. C @ 2. min, 10. K/min, 280. C @ 3. min; Column length: 30. m; Column diameter: 0.13 mm
CapillaryDB-5870.Ramarathnam, Rubin, et al., 1993, 2He, 30. C @ 2. min, 10. K/min, 280. C @ 3. min; Column length: 30. m; Column diameter: 0.13 mm

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

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Column type Active phase I Reference Comment
CapillarySqualane820.Korol and Lysyuk, 1980Program: not specified

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

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Column type Active phase I Reference Comment
CapillaryOV-101820.Du and Liang, 2003Program: not specified
CapillaryPolydimethyl siloxane820.Junkes, Castanho, et al., 2003Program: not specified

References

Go To: Top, Gas phase thermochemistry data, Phase change data, 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.

Doering, Roth, et al., 1989
Doering, W.E.; Roth, W.R.; Bauer, F.; Breuckmann, R.; Ebbrecht, T.; Herbold, M.; Schmidt, R.; Lennartz, H-W.; Lenoir, D.; Boese, R., Rotational barriers of strained olefines, Chem. Ber., 1989, 122, 1263-1266. [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]

Darwent and Steacie, 1949
Darwent, B.D.; Steacie, E.W.R., Can. J. Res., Sect. B, 1949, 27, 181. [all data]

Howard, Mears, et al., 1947
Howard, F.L.; Mears, T.W.; Fookson, A.; Pomerantz, P.; Brooks, D.B., Preparation and physical properties of several aliphatic hydrocarbons and intermediates, J. Res. Natl. Bur. Stand. (U. S.), 1947, 38, 365. [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]

Ambrose and Townsend, 1968
Ambrose, D.; Townsend, R., Critical Temperatures and Pressures of Some Alkanes, Trans. Faraday Soc., 1968, 64, 2622. [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]

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]

Ramarathnam, Rubin, et al., 1993
Ramarathnam, N.; Rubin, L.J.; Diosady, L.L., Studies on meat flavor. 3. A novel method for trapping volatile components from uncured and cured pork, J. Agric. Food Chem., 1993, 41, 6, 933-938, https://doi.org/10.1021/jf00030a019 . [all data]

Ramarathnam, Rubin, et al., 1993, 2
Ramarathnam, N.; Rubin, L.J.; Diosady, L.L., Studies on meat flavor. 4. Fractionation, characterization, and quantitation of volatiles from uncured and cured beef and chicken, J. Agric. Food Chem., 1993, 41, 6, 939-945, https://doi.org/10.1021/jf00030a020 . [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]

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

Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References