Butane, 2-methyl-
- Formula: C5H12
- Molecular weight: 72.1488
- IUPAC Standard InChI: InChI=1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3
- IUPAC Standard InChIKey: QWTDNUCVQCZILF-UHFFFAOYSA-N
- CAS Registry Number: 78-78-4
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: iso-Pentane; 1,1,2-Trimethylethane; 2-Methylbutane; iso-C5H12; Ethyldimethylmethane; Isoamylhydride; Exxsol isopentane S; 1,1-Dimethylpropane; Methylbutane; NSC 119476
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Critical temperature
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Tc (K) | Reference | Comment |
|---|---|---|
| 460.4 ± 0.5 | Daubert, 1996 | |
| 460.36 | Holcomb, Magee, et al., 1995 | Uncertainty assigned by TRC = 0.2 K; TRC |
| 460.4 | Majer and Svoboda, 1985 | |
| 460.39 | Das, Reed, et al., 1977 | Uncertainty assigned by TRC = 0.5 K; TRC |
| 460.39 | Ambrose, Cox, et al., 1960 | Uncertainty assigned by TRC = 0.2 K; Vis, PRT, IPTS-48; TRC |
| 460.95 | Vohra and Kobe, 1959 | Uncertainty assigned by TRC = 0.1 K; TRC |
| 461.0 | Young, 1910 | Uncertainty assigned by TRC = 0.8 K; TRC |
| 460.3 | Altschul, 1893 | Uncertainty assigned by TRC = 0.6 K; TRC |
| 468.0 | Pawlewski, 1883 | Uncertainty assigned by TRC = 8. K; TRC |
References
Go To: Top, Critical temperature, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Holcomb, Magee, et al., 1995
Holcomb, C.D.; Magee, J.W.; Haynes, W.M.,
Density Measurements on Natural Gas Liquids, Research Report RR-147, Gas Processors Association Project 916, 1995. [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]
Das, Reed, et al., 1977
Das, T.R.; Reed, C.O.; Eubank, P.T.,
PVT Surface and Thermodindynamic Properties of Isopentane.,
J. Chem. Eng. Data, 1977, 22, 9. [all data]
Ambrose, Cox, et al., 1960
Ambrose, D.; Cox, J.D.; Townsend, R.,
The critical temperatures of forty organic compounds,
Trans. Faraday Soc., 1960, 56, 1452. [all data]
Vohra and Kobe, 1959
Vohra, S.P.; Kobe, K.A.,
Volumetric Behaviour and Critical Constants of Isopentane,
J. Chem. Eng. Data, 1959, 4, 329. [all data]
Young, 1910
Young, S.,
The Internal Heat of Vaporization constants of thirty pure substances,
Sci. Proc. R. Dublin Soc., 1910, 12, 374. [all data]
Altschul, 1893
Altschul, M.,
The critical values of some organic compounds,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1893, 11, 577. [all data]
Pawlewski, 1883
Pawlewski, B.,
Critical temperatures of some liquids,
Ber. Dtsch. Chem. Ges., 1883, 16, 2633-36. [all data]
Notes
Go To: Top, Critical temperature, References
- Symbols used in this document:
Tc Critical temperature - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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