- Formula: C5H8
- Molecular weight: 68.1170
- IUPAC Standard InChI:
- Download the identifier in a file.
- IUPAC Standard InChIKey: USCSRAJGJYMJFZ-UHFFFAOYSA-N
- CAS Registry Number: 598-23-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Species with the same structure:
- Other names: Isopentyne; Isopropyl acetylene; 2-Methyl-3-butyne; 3-Methyl-1-butyne; 3-Methylbutyne; (CH3)2CHC«equiv»CH; 3-methylbut-1-yne
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- Other data available:
- Data at other public NIST sites:
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Gas 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
|fH°gas||136.4 ± 2.1||kJ/mol||Ccb||Wagman, Kilpatrick, et al., 1945||Unpublished work of E. J. Prosen; ALS|
Constant pressure heat capacity of gas
|Cp,gas (J/mol*K)||Temperature (K)||Reference||Comment|
|35.82||50.||Thermodynamics Research Center, 1997||p=1 bar.; GT|
Go To: Top, Gas phase thermochemistry data, Notes
Wagman, Kilpatrick, et al., 1945
Wagman, D.D.; Kilpatrick, J.E.; Pitzer, K.S.; Rossini, F.D., Heats, equilibrium constants, and free energies of formation of the acetylene hydrocarbons through the pentynes, to 1,500° K, J. Res. NBS, 1945, 35, 467-496. [all data]
Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas fH°gas Enthalpy of formation of gas at standard conditions
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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