- Formula: C4H6
- Molecular weight: 54.0904
- IUPAC Standard InChI:
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- IUPAC Standard InChIKey: XNMQEEKYCVKGBD-UHFFFAOYSA-N
- CAS Registry Number: 503-17-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Other names: But-2-yne; Dimethylacetylene; CH3C«equiv»CCH3; Crotonylene; UN 1144
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Condensed phase thermochemistry data
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Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing
|S°liquid||195.10||J/mol*K||N/A||Yost, Osborne, et al., 1941||Extrapolated from 291.0 K. Anomalous heat capacity between 145 and 160 K. S obtained from total energy divided by average temperature.|
Constant pressure heat capacity of liquid
|Cp,liquid (J/mol*K)||Temperature (K)||Reference||Comment|
|124.14||290.||Yost, Osborne, et al., 1941||T = 15 to 290 K.|
Go To: Top, Condensed phase thermochemistry data, Notes
Yost, Osborne, et al., 1941
Yost, D.M.; Osborne, D.W.; Garner, C.S., The heat capacity, entropy, and heats of transition, fusion, and vaporization of dimethylacetylene. Free rotation in the dimethylacetylene molecule, J. Am. Chem. Soc., 1941, 63, 3492-3496. [all data]
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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