2-Butene, (Z)-
- Formula: C4H8
- Molecular weight: 56.1063
- IUPAC Standard InChI: InChI=1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3-
- IUPAC Standard InChIKey: IAQRGUVFOMOMEM-ARJAWSKDSA-N
- CAS Registry Number: 590-18-1
- 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: (Z)-2-Butene; cis-Butene; cis-2-Butylene; cis-1,2-Dimethylethylene; cis-2-Butene; (Z)-2-C4H8; (2Z)-2-Butene; 2-Butene, cis-; Butene-2, cis-; 2-Butene, (2Z)-; (Z)-but-2-ene
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Condensed phase thermochemistry data
Go To: Top, 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: Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°liquid | 220. | J/mol*K | N/A | Chao, Hall, et al., 1983 | |
| S°liquid | 219.91 | J/mol*K | N/A | Scott, Ferguson, et al., 1944 | |
| S°liquid | 212.88 | J/mol*K | N/A | Todd and Parks, 1936 | Extrapolation below 90 K, 48.95 J/mol*K. |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 127. | 298.15 | Chao, Hall, et al., 1983 | T = 5 to 367 K. |
| 130.00 | 299.8 | Schlinger and Sage, 1952 | T = 80 to 200°F. |
| 126.15 | 298.15 | Scott, Ferguson, et al., 1944 | T = 15 to 300 K. |
| 118.87 | 266.6 | Todd and Parks, 1936 | T = 93 to 267 K. Value is unsmoothed experimental datum. |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chao, Hall, et al., 1983
Chao, J.; Hall, K.R.; Yao, J.M.,
Thermodynamic properties of simple alkenes,
Thermochim. Acta, 1983, 64(3), 285-303. [all data]
Scott, Ferguson, et al., 1944
Scott, R.B.; Ferguson, W.J.; Brickwedde, F.G.,
Thermodynamic properties of cis-2-butene from 15° to 1,500 K,
J. Res. NBS, 1944, 33, 1-20. [all data]
Todd and Parks, 1936
Todd, S.S.; Parks, G.S.,
Thermal data on organic compounds. XV. Some heat capacity, entropy and free energy data for the isomeric butenes,
J. Am. Chem. Soc., 1936, 58, 134-137. [all data]
Schlinger and Sage, 1952
Schlinger, W.G.; Sage, B.H.,
Isobaric heat capacities at bubble point. cis-2-butene, isopropylbenzene, and n-decane,
Ind. Eng. Chem., 1952, 44, 2454-2456. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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