1,1,2-Trifluoroethane
- Formula: C2H3F3
- Molecular weight: 84.0404
- IUPAC Standard InChI: InChI=1S/C2H3F3/c3-1-2(4)5/h2H,1H2
- IUPAC Standard InChIKey: WGZYQOSEVSXDNI-UHFFFAOYSA-N
- CAS Registry Number: 430-66-0
- 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: CH2FCHF2; Ethane, 1,1,2-trifluoro-
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Gas phase thermochemistry data
Go To: Top, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -165.2 ± 2.4 | kcal/mol | Chyd | Kolesov, Martynov, et al., 1965 | Reanalyzed by Kolesov and Papina, 1983, Original value = -172.4 kcal/mol |
Phase change data
Go To: Top, Gas phase thermochemistry data, 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 278. | K | N/A | PCR Inc., 1990 | BS |
| Tboil | 278.2 | K | N/A | Weast and Grasselli, 1989 | BS |
| Tboil | 276. | K | N/A | Young, Fukuhara, et al., 1940 | Uncertainty assigned by TRC = 3. K; TRC |
| Tboil | 278.15 | K | N/A | Henne and Renoll, 1936 | Uncertainty assigned by TRC = 0.5 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 189. | K | N/A | Young, Fukuhara, et al., 1940 | Uncertainty assigned by TRC = 5. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Tc | 429.800 | K | N/A | Holcomb and Van Poolen, 1994 | Uncertainty assigned by TRC = 0.7 K; Recommended value based on oberved and literature data and correlations; TRC |
| Tc | 461.6 | K | N/A | Chae, Schmidt, et al., 1990 | Uncertainty assigned by TRC = 0.5 K; by extrapolation to equality of L and G refr. index; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Pc | 51.72 | atm | N/A | Holcomb and Van Poolen, 1994 | Uncertainty assigned by TRC = 0.08 atm; Recommended value based on oberved and literature data and correlations; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ρc | 5.58 | mol/l | N/A | Holcomb and Van Poolen, 1994 | Uncertainty assigned by TRC = 0.06 mol/l; Recommended value based on oberved and literature data and correlations; TRC |
| ρc | 6.54 | mol/l | N/A | Chae, Schmidt, et al., 1990 | Uncertainty assigned by TRC = 0.1 mol/l; derived from obs L and G refractive index; TRC |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kolesov, Martynov, et al., 1965
Kolesov, V.P.; Martynov, A.M.; Skuratov, S.M.,
Standard enthalpy of formation of 1,1,1-trifluoroethane,
Russ. J. Phys. Chem. (Engl. Transl.), 1965, 39, 223-225. [all data]
Kolesov and Papina, 1983
Kolesov, V.P.; Papina, T.S.,
Thermochemistry of Haloethanes,
Russ. Chem. Rev., 1983, 52, 425. [all data]
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Young, Fukuhara, et al., 1940
Young, D.W.S.; Fukuhara, N.; Bigelow, L.A.,
The Action of Elementary Fluorine Upon Organic Compounds VIII. The Influence of Dilution on the Vapor Phase Fluorination of Ethane,
J. Am. Chem. Soc., 1940, 62, 1171. [all data]
Henne and Renoll, 1936
Henne, A.L.; Renoll, M.W.,
J. Am. Chem. Soc., 1936, 58, 889. [all data]
Holcomb and Van Poolen, 1994
Holcomb, C.D.; Van Poolen, L.J.,
Coexisting densities and vapor pressures for R143 from 314 to 401 K with new critical point property estimates,
Fluid Phase Equilib., 1994, 100, 223-239. [all data]
Chae, Schmidt, et al., 1990
Chae, H.B.; Schmidt, J.W.; Moldover, M.R.,
Alternative refrigerants R123a, R134, R141b, R142b, and R152a: critical temperature, refractive index, surface tension, and estimates of liquid, vapor, and critical densities,
J. Phys. Chem., 1990, 94, 8840-5. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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