Hexane, 2,2,4-trimethyl-
- Formula: C9H20
- Molecular weight: 128.2551
- IUPAC Standard InChIKey: AFTPEBDOGXRMNQ-UHFFFAOYSA-N
- CAS Registry Number: 16747-26-5
- 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: 2,2,4-Trimethylhexane
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Phase change data
Go To: Top, 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 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 | 399.6 ± 0.4 | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 153.15 | K | N/A | Streiff, Zimmerman, et al., 1948 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tfus | 149.75 | K | N/A | Howard, Mears, et al., 1947 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 149.77 | K | N/A | Brooks, 1943 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tfus | 143.62 | K | N/A | Brooks, Cleaton, et al., 1937 | Uncertainty assigned by TRC = 0.6 K; identification somewhat uncertain; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 40.7 | kJ/mol | N/A | Reid, 1972 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
39.5 | 303. | A | Stephenson and Malanowski, 1987 | Based on data from 288. to 410. K.; AC |
41.0 | 278. | A | Stephenson and Malanowski, 1987 | Based on data from 238. to 393. K.; AC |
40.5 | 288. | IP | Osborn and Douslin, 1974 | Based on data from 238. to 303. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
238. to 303. | 4.31484 | 1528.134 | -42.976 | Osborn and Douslin, 1974 | Coefficents calculated by NIST from author's data. |
Gas Chromatography
Go To: Top, Phase change data, 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. | 777. | Heinzen, Soares, et al., 1999 | |
Capillary | Squalane | 25. | 786. | Hilal, Carreira, et al., 1994 | |
Capillary | Squalane | 50. | 789.2 | Lunskii and Paizanskaya, 1988 | He; Column length: 50. m; Column diameter: 0.22 mm |
Capillary | Squalane | 70. | 792. | Lunskii and Paizanskaya, 1988 | He; Column length: 50. m; Column diameter: 0.22 mm |
Capillary | DB-1 | 60. | 792.8 | Lubeck and Sutton, 1983 | Column length: 60. m; Column diameter: 0.264 mm |
Capillary | DB-1 | 60. | 792.8 | Lubeck and Sutton, 1983 | 60. m/0.259 mm/1. μm |
Capillary | OV-101 | 50. | 791. | Johansen and Ettre, 1982 | 100. m/0.27 mm/0.20 μm |
Capillary | OV-101 | 50. | 791. | Johansen and Ettre, 1982 | 55. m/0.27 mm/0.9 μm |
Capillary | SF-96 | 50. | 791. | Johansen and Ettre, 1982 | 91.4 m/0.31 mm/0.20 μm |
Capillary | Squalane | 86. | 794.2 | Nabivach and Kirilenko, 1979 | N2; Column length: 50. m |
Capillary | Squalane | 86. | 794.3 | Nabivach and Kirilenko, 1979 | N2; Column length: 50. m |
Capillary | Squalane | 60. | 790. | Chretien and Dubois, 1976 | |
Capillary | Squalane | 60. | 790.7 | Chretien and Dubois, 1976 | |
Capillary | Vacuum Grease Oil (VM-4) | 95. | 788.8 | Sultanov and Arustamova, 1975 | N2; Column length: 150. m; Column diameter: 0.25 mm |
Packed | SE-30 | 110. | 793. | Mitra, Mohan, et al., 1974 | N2, Chrom W; Column length: 6.1 m |
Packed | SE-30 | 120. | 800. | Mitra, Mohan, et al., 1974 | N2, Chrom W; Column length: 6.1 m |
Packed | SE-30 | 130. | 800. | Mitra, Mohan, et al., 1974 | N2, Chrom W; Column length: 6.1 m |
Packed | SE-30 | 140. | 800. | Mitra, Mohan, et al., 1974 | N2, Chrom W; Column length: 6.1 m |
Capillary | Squalane | 100. | 792. | Mitra, Mohan, et al., 1974, 2 | H2; Column length: 50. m; Column diameter: 0.2 mm |
Capillary | Squalane | 50. | 789. | Rijks and Cramers, 1974 | N2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Squalane | 70. | 792. | Rijks and Cramers, 1974 | N2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Vacuum Grease Oil (VM-4) | 35. | 783. | Sidorov, Petrova, et al., 1972 | |
Capillary | Vacuum Grease Oil (VM-4) | 45. | 785. | Sidorov, Petrova, et al., 1972 | |
Capillary | Vacuum Grease Oil (VM-4) | 50. | 786. | Sidorov, Petrova, et al., 1972 | |
Capillary | Vacuum Grease Oil (VM-4) | 58. | 787. | Sidorov, Petrova, et al., 1972 | |
Capillary | Vacuum Grease Oil (VM-4) | 68. | 789. | Sidorov, Petrova, et al., 1972 | |
Packed | SE-30 | 80. | 794. | Mitra and Saha, 1970 | N2 |
Capillary | Squalane | 60. | 791. | Matukuma, 1969 | N2; Column length: 91.4 m; Column diameter: 0.25 mm |
Packed | Squalane | 30. | 786.5 | Tourres, 1967 | H2; Column length: 10. m |
Packed | Squalane | 50. | 789. | Tourres, 1967 | H2; Column length: 10. m |
Capillary | Squalane | 30. | 787. | Tourres, 1967, 2 | H2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Squalane | 50. | 790. | Tourres, 1967, 2 | H2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Squalane | 70. | 792. | Tourres, 1967, 2 | H2; Column length: 100. m; Column diameter: 0.25 mm |
Kovats' RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 777. | 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 | OV-101 | 789. | Hayes and Pitzer, 1982 | 110. m/0.25 mm/0.20 μm, He, 1. K/min; Tstart: 35. C; Tend: 200. C |
Capillary | Apiezon L | 786. | Louis, 1971 | N2, 1. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tstart: 60. C |
Kovats' RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Petrocol DH-100 | 790.8 | 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) |
Capillary | Squalane | 790. | Korol and Lysyuk, 1980 | Program: not specified |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Petrocol DH | 792.8 | 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 | OV-101 | 791.6 | Yin, Liu, et al., 2001 | N2, 1. K/min; Column length: 80. m; Column diameter: 0.22 mm; Tstart: 30. C; Tend: 130. C |
Capillary | Petrocol DH | 789.61 | Subramaniam, Bochniak, et al., 1994 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Capillary | Petrocol DH | 790. | White, Hackett, et al., 1992 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Capillary | OV-101 | 789. | Hayes and Pitzer, 1981 | 108. m/0.25 mm/0.2 μm, 1. K/min; Tstart: 35. C; Tend: 200. C |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-101 | 792. | Wu and Lu, 1984 | Program: not specified |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Methyl Silicone | 50. | 789. | N/A | N2; Column length: 74.6 m; Column diameter: 0.28 mm |
Capillary | OV-101 | 50. | 791. | Wu and Lu, 1984, 2 | |
Capillary | OV-101 | 70. | 793. | Wu and Lu, 1984, 2 | |
Capillary | Squalane | 86. | 791. | Vigdergauz and Martynov, 1971 | He; Column length: 150. m; Column diameter: 0.35 mm |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polydimethyl siloxane: CP-Sil 5 CB | 795. | 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 | 791. | Supelco, 2012 | 100. m/0.25 mm/0.50 μm, Helium, 20. C @ 15. min, 15. K/min, 220. C @ 30. min |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 789. | Feng and Mu, 2007 | Program: not specified |
Capillary | OV-101 | 791. | Du and Liang, 2003 | Program: not specified |
Capillary | Polydimethyl siloxane | 777. | Junkes, Castanho, et al., 2003 | Program: not specified |
Capillary | Polydimethyl siloxanes | 792. | Yin, Guo, et al., 2001 | Program: not specified |
Capillary | Methyl Silicone | 790. | Spieksma, 1999 | Program: not specified |
Capillary | OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc. | 789. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: 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.
Streiff, Zimmerman, et al., 1948
Streiff, A.J.; Zimmerman, J.C.; Soule, L.F.; Butt, M.T.; Sedlak, V.A.; Willingham, C.B.; Rossini, F.D.,
Purification, Purity, and Freezing Points of 30 Hydrocarbons of the API-Standard and API-NBS Series,
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Howard, F.L.; Mears, T.W.; Fookson, A.; Pomerantz, P.; Brooks, D.B.,
Preparation and physical properties of several aliphatic hydrocarbons and intermediates,
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Brooks, 1943
Brooks, D.B.,
, Natl. Advis. Comm. Aeronaut., Rep. Natl. Bur. Stand., Was hington, D. C., 1943. [all data]
Brooks, Cleaton, et al., 1937
Brooks, D.B.; Cleaton, R.B.; Carter, F.R.,
Paraffin Hydrocarbons Isolated from Crude Synthetic Isooctane (2,2,4-Trimethylpentane),
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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,
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Osborn and Douslin, 1974
Osborn, Ann G.; Douslin, Donald R.,
Vapor-pressure relations for 15 hydrocarbons,
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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,
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Hilal, Carreira, et al., 1994
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Estimation of Gas-Liquid Chromatographic Retention Times from Molecular Structure,
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Identification of hydrocarbons C1-C9 of petrol fractions of oils and condensates in the use of capillary columns with dinonylphthalate,
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Lubeck and Sutton, 1983
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Kovats retention indices of selected hydrocarbons through C10 on bonded phase fused silica capillaries,
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Retention index values of hydrocarbons on open-tubular columns coated with methylsilicone liquid phases,
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The use of retention indices for identifying the components of crude benzene,
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New Perspectives in the Prediction of Kovats Indices,
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Determination of the boiling points of C10 isoalkanes in an n-decane isomerizate from gas chromatographic retention indices,
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Advances in the utilization of the retention index system for characterizing hydrocarbons in complex mixtures by gas chromatography,
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High precision capillary gas chromatography of hydrocarbons,
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Qualitative analysis of wide-boiling fraction C5-C10 with capillary chromatography
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Mitra, G.D.; Saha, N.C.,
Determination of Retention Indices of Saturated Hydrocarbons by Graphical Methods,
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Retention indices of alkanes through C10 and alkenes through C8 and relation between boiling points and retention data,
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Structural analysis of industrial butene dimers by gas chromatography,
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Studies on meat flavor. 3. A novel method for trapping volatile components from uncured and cured pork,
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Characterizing petroleum- and shale-derived jet fuel distillates via temperature-programmed Kováts indices,
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Speciation of the volatile organic compounds (VOCs) in solventborne aerosol coatings by solid phase microextraction-gas chromatography,
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Chemometrics to chemical modeling: structural coding in hydrocarbons and retention indices of gas chromatography,
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Spieksma, W.,
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Waggott, A.; Davies, I.W.,
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Notes
Go To: Top, Phase change data, Gas Chromatography, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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