Cyclopropane
- Formula: C3H6
- Molecular weight: 42.0797
- IUPAC Standard InChI: InChI=1S/C3H6/c1-2-3-1/h1-3H2
- IUPAC Standard InChIKey: LVZWSLJZHVFIQJ-UHFFFAOYSA-N
- CAS Registry Number: 75-19-4
- 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. - Other names: Trimethylene; Trimethylene (cyclic); UN 1027; Cyclopropnane
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 39.30 | kJ/mol | Cm | Lacher, Walden, et al., 1950 | Heat of hydrobromination; ALS |
| ΔfH°gas | 53.30 ± 0.59 | kJ/mol | Cm | Knowlton and Rossini, 1949 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°gas | -2091.4 ± 0.54 | kJ/mol | Cm | Knowlton and Rossini, 1949 | Corresponding ΔfHºgas = 53.35 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of gas
| Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 33.26 | 50. | Dorofeeva O.V., 1986 | Selected S(T) and Cp(T) values are in good agreement with those calculated earlier [ Kobe K.A., 1950]. The agreement with the data of [80KAR/PAM] increases as the temperature increases (up to 2 J/mol*K in Cp(1000 K)).; GT |
| 33.32 | 100. | ||
| 34.56 | 150. | ||
| 38.91 | 200. | ||
| 50.69 | 273.15 | ||
| 55.6 ± 1.0 | 298.15 | ||
| 55.94 | 300. | ||
| 76.05 | 400. | ||
| 93.86 | 500. | ||
| 108.54 | 600. | ||
| 120.68 | 700. | ||
| 130.91 | 800. | ||
| 139.66 | 900. | ||
| 147.21 | 1000. | ||
| 153.75 | 1100. | ||
| 159.43 | 1200. | ||
| 164.38 | 1300. | ||
| 168.69 | 1400. | ||
| 172.45 | 1500. |
Constant pressure heat capacity of gas
| Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 35.38 | 157.8 | Kistiakowsky G.B., 1940 | Please also see Kistiakowsky G.B., 1940, 2.; GT |
| 42.16 | 220.1 | ||
| 42.55 | 223.7 | ||
| 48.68 | 258.7 | ||
| 50.63 | 272.15 | ||
| 54.66 | 291.4 | ||
| 55.25 | 295.5 | ||
| 56.48 | 300.48 | ||
| 59.29 | 313.9 | ||
| 59.27 | 316.7 | ||
| 60.90 | 325.1 | ||
| 62.17 | 332.8 | ||
| 63.18 | 333.70 | ||
| 64.27 | 338.9 | ||
| 63.26 | 339.6 | ||
| 70.17 | 368.46 |
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.
Lacher, Walden, et al., 1950
Lacher, J.R.; Walden, C.H.; Lea, K.R.; Park, J.D.,
Vapor phase heats of hydrobromination of cyclopropane and propylene,
J. Am. Chem. Soc., 1950, 72, 331-333. [all data]
Knowlton and Rossini, 1949
Knowlton, J.W.; Rossini, F.D.,
Heats of combustion and formation of cyclopropane,
J. Res. NBS, 1949, 43, 113-115. [all data]
Dorofeeva O.V., 1986
Dorofeeva O.V.,
Thermodynamic properties of twenty-one monocyclic hydrocarbons,
J. Phys. Chem. Ref. Data, 1986, 15, 437-464. [all data]
Kobe K.A., 1950
Kobe K.A.,
Thermochemistry for the petrochemical industry. XIV. Some miscellaneous hydrocarbons,
Petrol. Refiner, 1950, 29 (12), 93-96. [all data]
Kistiakowsky G.B., 1940
Kistiakowsky G.B.,
Gaseous heat capacities. II,
J. Chem. Phys., 1940, 8, 610-618. [all data]
Kistiakowsky G.B., 1940, 2
Kistiakowsky G.B.,
The low temperature gaseous heat capacities of certain C3 hydrocarbons,
J. Chem. Phys., 1940, 8, 970-977. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas ΔcH°gas Enthalpy of combustion of gas at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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