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, 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 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° | 9.73 | kcal/mol | N/A | Reid, 1972 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
9.44 | 303. | A | Stephenson and Malanowski, 1987 | Based on data from 288. to 410. K.; AC |
9.80 | 278. | A | Stephenson and Malanowski, 1987 | Based on data from 238. to 393. K.; AC |
9.68 | 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 (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
238. to 303. | 4.30913 | 1528.134 | -42.976 | Osborn and Douslin, 1974 | Coefficents calculated by NIST from author's data. |
Mass spectrum (electron ionization)
Go To: Top, 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
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
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 | Japan AIST/NIMC Database- Spectrum MS-NW-4572 |
NIST MS number | 233018 |
Gas Chromatography
Go To: Top, 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. | 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, 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.
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,
J. Res. Natl. Bur. Stand. (U. S.), 1948, 41, 323. [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]
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),
J. Res. Natl. Bur. Stand. (U. S.), 1937, 19, 319. [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
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Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
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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
Hilal, S.H.; Carreira, L.A.; Karickhoff, S.W.; Melton, C.M.,
Estimation of Gas-Liquid Chromatographic Retention Times from Molecular Structure,
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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,
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Lubeck and Sutton, 1983
Lubeck, A.J.; Sutton, DL.,
Kovats retention indices of selected hydrocarbons through C10 on bonded phase fused silica capillaries,
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Johansen and Ettre, 1982
Johansen, N.G.; Ettre, L.S.,
Retention index values of hydrocarbons on open-tubular columns coated with methylsilicone liquid phases,
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Nabivach and Kirilenko, 1979
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The use of retention indices for identifying the components of crude benzene,
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Chretien and Dubois, 1976
Chretien, J.R.; Dubois, J.-E.,
New Perspectives in the Prediction of Kovats Indices,
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Sultanov and Arustamova, 1975
Sultanov, N.T.; Arustamova, L.G.,
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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Gas chromatographic analysis of complex hydrocarbon mixtures,
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Rijks, J.A.; Cramers, C.A.,
High precision capillary gas chromatography of hydrocarbons,
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Sidorov, Petrova, et al., 1972
Sidorov, R.I.; Petrova, V.I.; Ivanova, M.P.,
Qualitative analysis of wide-boiling fraction C5-C10 with capillary chromatography
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Mitra and Saha, 1970
Mitra, G.D.; Saha, N.C.,
Determination of Retention Indices of Saturated Hydrocarbons by Graphical Methods,
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Matukuma, 1969
Matukuma, A.,
Retention indices of alkanes through C10 and alkenes through C8 and relation between boiling points and retention data,
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Tourres, 1967
Tourres, D.A.,
Structural analysis of industrial butene dimers by gas chromatography,
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Tourres, D.A.,
Structure moléculaire et rétention en chromatographie en phase gazeuse. Influence de la température sur l'indice de rétention d'alcanes isomères,
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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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Louis, R.,
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Korol, A.N.; Lysyuk, L.S.,
A New Thermodynamic Method for Calculating the Retention Indices of Isoalkanes on Squalane,
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Censullo, A.C.; Jones, D.R.; Wills, M.T.,
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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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,
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Vigdergauz, M.S.; Martynov, A.A.,
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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]
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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]
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Yin, C.; Guo, W.; Lin, T.; Liu, S.; Fu, R.; Pan, Z.; Wang, L.,
Application of wavelet neural network to the prediction of gas chromatographic retention indices of alkanes,
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Spieksma, W.,
Determination of vapor liquid equilibrium from the Kovats retention index on dimethylsilicone using the Wilson mixing tool,
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. [all data]
Waggott and Davies, 1984
Waggott, A.; Davies, I.W.,
Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]
Notes
Go To: Top, Phase change data, Mass spectrum (electron ionization), 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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