Hexane, 2,2,5,5-tetramethyl-
- Formula: C10H22
- Molecular weight: 142.2817
- IUPAC Standard InChIKey: HXQDUXXBVMMIKL-UHFFFAOYSA-N
- CAS Registry Number: 1071-81-4
- 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: Bineopentyl; 2,2,5,5-Tetramethylhexane
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Gas phase thermochemistry data
Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, 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 | -68.0 | kcal/mol | Ccb | Doering, 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 |
---|---|---|---|---|---|
Tboil | 410.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 409.65 | K | N/A | Darwent and Steacie, 1949 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tboil | 410.6 | K | N/A | Howard, Mears, et al., 1947 | Uncertainty assigned by TRC = 0.05 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 258. ± 10. | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 581.4 ± 0.5 | K | N/A | Daubert, 1996 | |
Tc | 581.45 | K | N/A | Ambrose and Townsend, 1968 | Uncertainty assigned by TRC = 0.1 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 21.6 ± 0.4 | atm | N/A | Daubert, 1996 | |
Pc | 21.57 | atm | N/A | Ambrose and Townsend, 1968 | Uncertainty assigned by TRC = 0.099 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 10.4 | kcal/mol | N/A | Reid, 1972 | AC |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas Chromatography, 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
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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 |
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
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Squalane | 100. | 820. | Heinzen, Soares, et al., 1999 | |
Capillary | Squalane | 60. | 820.2 | Chretien and Dubois, 1976 | |
Capillary | Squalane | 60. | 820. | Matukuma, 1969 | N2; Column length: 91.4 m; Column diameter: 0.25 mm |
Kovats' RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 870. | Ramarathnam, Rubin, et al., 1993 | He, 30. C @ 2. min, 10. K/min, 280. C @ 3. min; Column length: 30. m; Column diameter: 0.13 mm |
Capillary | DB-5 | 870. | Ramarathnam, Rubin, et al., 1993, 2 | He, 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
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Squalane | 820. | Korol and Lysyuk, 1980 | Program: not specified |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-101 | 820. | Du and Liang, 2003 | Program: not specified |
Capillary | Polydimethyl siloxane | 820. | Junkes, Castanho, et al., 2003 | Program: 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
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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