Cyclohexane, 1,4-dimethyl-, trans-
- Formula: C8H16
- Molecular weight: 112.2126
- IUPAC Standard InChIKey: QRMPKOFEUHIBNM-ZKCHVHJHSA-N
- CAS Registry Number: 2207-04-7
- 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. - Stereoisomers:
- Other names: trans-1,4-Dimethylcyclohexane; 1,trans-4-Dimethylcyclohexane; 1,4-Dimethylcyclohexane, trans-; Cyclohexane, trans-1,4-dimethyl-; t-1,4-Dimethylcyclohexane; 1,4(trans)-dimethylcyclohexane
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Phase change data
Go To: Top, IR Spectrum, 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 392.6 ± 0.6 | K | AVG | N/A | Average of 19 out of 20 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 237. ± 4. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 236.22 | K | N/A | Huffman, Todd, et al., 1949 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 5877.7 ± 0.5 | K | N/A | Daubert, 1996 | |
Tc | 590. | K | N/A | Majer and Svoboda, 1985 | |
Tc | 587.7 | K | N/A | Powell, Swinton, et al., 1970 | Uncertainty assigned by TRC = 0.58 K; Visual in metal block oven, TE cal. by measurement of Tc of alkanes and benzene, hexafluorobenzene and cyclohexane. See R. J. Powell and F.J.Swinton, 1970 for purification.; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.070 | kcal/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 8.99 | kcal/mol | N/A | Kusano and Saito, 1975 | AC |
ΔvapH° | 9.06 | kcal/mol | N/A | Reid, 1972 | AC |
ΔvapH° | 9.54 ± 0.02 | kcal/mol | C | Osborne and Ginnings, 1947 | AC |
ΔvapH° | 9.051 | kcal/mol | C | Osborne and Ginnings, 1947, 2 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
7.782 | 392.5 | N/A | Majer and Svoboda, 1985 | |
8.77 | 328. | A,MM | Stephenson and Malanowski, 1987 | Based on data from 313. to 395. K. See also Willingham, Taylor, et al., 1945.; AC |
8.51 ± 0.02 | 341. | C | McCullough, Person, et al., 1951 | AC |
8.27 ± 0.02 | 357. | C | McCullough, Person, et al., 1951 | AC |
8.01 ± 0.02 | 377. | C | McCullough, Person, et al., 1951 | AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kcal/mol)
Tr = reduced temperature (T / Tc)
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Temperature (K) | A (kcal/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
298. to 377. | 12.64 | 0.2755 | 590. | Majer and Svoboda, 1985 |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.94720 | 236.22 | Huffman, Todd, et al., 1949, 2 | DH |
2.949 | 236.2 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
12.48 | 236.22 | Huffman, Todd, et al., 1949, 2 | DH |
IR Spectrum
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
Gas Phase Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Download spectrum in JCAMP-DX format.
Owner | NIST Standard Reference Data Program Collection (C) 2018 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 |
State | gas |
Instrument | HP-GC/MS/IRD |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, IR Spectrum, 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. |
---|---|
NIST MS number | 1623 |
References
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Huffman, Todd, et al., 1949
Huffman, H.M.; Todd, S.S.; Oliver, G.D.,
Low Temperature Thermal Data on Eight C8H16 Alkylcyclohexanes,
J. Am. Chem. Soc., 1949, 71, 584. [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]
Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
Powell, Swinton, et al., 1970
Powell, R.J.; Swinton, F.L.; Young, C.L.,
The thermodynamic properties of fluorocarbon-hycrocarbon mixtures 3. Gas- Liquid critical temperatures and a comparison with the theory of Rowlinson and Sutton,
J. Chem. Thermodyn., 1970, 2, 105. [all data]
Kusano and Saito, 1975
Kusano, K.; Saito, Y.,
, Preprints 33rd Ann. Meeting Chem. Soc. Japan, Japan, 1975, 123. [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]
Osborne and Ginnings, 1947
Osborne, Nathan S.; Ginnings, Defoe C.,
Measurements of heat of vaporization and heat capacity of a number of hydrocarbons,
J. RES. NATL. BUR. STAN., 1947, 39, 5, 453-17, https://doi.org/10.6028/jres.039.031
. [all data]
Osborne and Ginnings, 1947, 2
Osborne, N.S.; Ginnings, D.C.,
Measurements of heat of vaporization and heat capacity of a number of hydrocarbons,
J. Res. NBS, 1947, 39, 453-477. [all data]
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
. [all data]
Willingham, Taylor, et al., 1945
Willingham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D.,
Vapor pressures and boiling points of some paraffin, alkylcyclopentane, alkylcyclohexane, and alkylbenzene hydrocarbons,
J. RES. NATL. BUR. STAN., 1945, 35, 3, 219-17, https://doi.org/10.6028/jres.035.009
. [all data]
McCullough, Person, et al., 1951
McCullough, J.P.; Person, W.B.; Spitzer, Ralph,
The Heats of Vaporization and Vapor Heat Capacities of Some Dimethylcyclohexanes 1,
J. Am. Chem. Soc., 1951, 73, 9, 4069-4071, https://doi.org/10.1021/ja01153a003
. [all data]
Huffman, Todd, et al., 1949, 2
Huffman, H.M.; Todd, S.S.; Oliver, G.D.,
Low temperature thermal data on eight C8H16 alkylcyclohexanes,
J. Am. Chem. Soc., 1949, 71, 584-592. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion 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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