2-Propynal
- Formula: C3H2O
- Molecular weight: 54.0474
- IUPAC Standard InChI: InChI=1S/C3H2O/c1-2-3-4/h1,3H
- IUPAC Standard InChIKey: IJNJLGFTSIAHEA-UHFFFAOYSA-N
- CAS Registry Number: 624-67-9
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Propyn-3-al; Propiolaldehye; Propargylaldehyde; Propioaldehyde; Propynal; Propiolaldehyde; 2-Propyn-1-one; Formylacetylene; Acetylenecarboxaldehyde
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Gas phase thermochemistry data
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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 by: Glushko Thermocenter, Russian Academy of Sciences, Moscow
Constant pressure heat capacity of gas
| Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 40.00 | 100. | Ramaswamy K., 1962 | These values were calculated neglecting the internal rotation in molecule. The values of S(298.15 K)=262.5 and Cp(298.15 K)=67.7 J/mol*K were estimated by group additivity method [ Dorofeeva O.V., 1997]. |
| 52.05 | 200. | ||
| 60.79 | 273.15 | ||
| 63.60 | 298.15 | ||
| 63.81 | 300. | ||
| 73.72 | 400. | ||
| 81.80 | 500. | ||
| 88.45 | 600. | ||
| 93.97 | 700. | ||
| 98.70 | 800. | ||
| 102.72 | 900. | ||
| 106.19 | 1000. |
References
Go To: Top, Gas phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ramaswamy K., 1962
Ramaswamy K.,
Thermodynamic properties for HCCCHO, DCCCHO, and HCCCDO,
Spectroscopia Mol., 1962, 11, 14-15. [all data]
Dorofeeva O.V., 1997
Dorofeeva O.V.,
Unpublished results. Thermocenter of Russian Academy of Science, Moscow, 1997. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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