1-Butene

Formula: C₄H₈
Molecular weight: 56.1063
IUPAC Standard InChI: InChI=1S/C4H8/c1-3-4-2/h3H,1,4H2,2H3
IUPAC Standard InChIKey: VXNZUUAINFGPBY-UHFFFAOYSA-N
CAS Registry Number: 106-98-9
Chemical structure:
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Other names: α-Butene; α-Butylene; But-1-ene; Butene-1; Ethylethylene; 1-Butylene; 1-C4H8
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Condensed phase thermochemistry data

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Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing

Quantity	Value	Units	Method	Reference
S°_liquid	229.06	J/mol*K	N/A	Takeda, Yamamuro, et al., 1991
S°_liquid	227.0	J/mol*K	N/A	Chao, Hall, et al., 1983
S°_liquid	213.84	J/mol*K	N/A	Aston, Fink, et al., 1946

Constant pressure heat capacity of liquid

C_p,liquid (J/mol*K)	Temperature (K)	Reference	Comment
128.96	298.15	Takeda, Yamamuro, et al., 1991	T = 5 to 300 K.
118.	298.15	Chao, Hall, et al., 1983	T = 12 to 360 K.
128.6	294.	Schlinger and Sage, 1949	T = 294 to 378 K. Cp given as 0.548 Btu/lb*R at 70°F at bubble point.
119.45	260.	Aston, Fink, et al., 1946	T = 11.5 to 260 K.
119.16	253.4	Todd and Parks, 1936	T = 81 to 253 K. Value is unsmoothed experimental datum.

References

Go To: Top, Condensed phase thermochemistry data, Notes

Takeda, Yamamuro, et al., 1991
Takeda, K.; Yamamuro, O.; Suga, H., Thermodynamic study of 1-butene. Exothermic and endothermic enthalpy relaxations near the glass transition, J. Phys. Chem. Solids, 1991, 22, 607-615. [all data]

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]

Aston, Fink, et al., 1946
Aston, J.G.; Fink, H.L.; Bestul, A.B.; Pace, E.L.; Szasz, G.J., The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of butene-1. The zero point entropy of the glass. The entropy of the gas from molecular data, J. Am. Chem. Soc., 1946, 68, 52-57. [all data]

Schlinger and Sage, 1949
Schlinger, W.G.; Sage, B.H., Isobaric heat capacity of 1-butene and 1-pentene at bubble point, Ind. Eng. Chem., 1949, 41, 1779-1782. [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]

Notes

Go To: Top, Condensed phase thermochemistry data, References

Symbols used in this document:

C_p,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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C_p,liquid	Constant pressure heat capacity of liquid
S°_liquid	Entropy of liquid at standard conditions