Trifluoroacetic acid
- Formula: C2HF3O2
- Molecular weight: 114.0233
- IUPAC Standard InChIKey: DTQVDTLACAAQTR-UHFFFAOYSA-N
- CAS Registry Number: 76-05-1
- 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: Acetic acid, trifluoro-; Perfluoroacetic acid; Trifluoroethanoic acid; CF3COOH; Kyselina trifluoroctova; Trifluoracetic acid; UN 2699; Acetic acid, 2,2,2-trifluoro-; NSC 77366
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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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -1018. ± 4.6 | kJ/mol | Eqk | Guthrie, 1976 | |
ΔfH°gas | -1031.4 ± 1.7 | kJ/mol | Ccr | Kolesov, Slavutskaya, et al., 1972 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -1022. ± 2. kJ/mol; see Kolesov and Zenkov, 1966 |
IR Spectrum
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
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Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Sadtler Research Labs Under US-EPA Contract |
Source reference | No.222236 (NIST/EPA/NIH MS Database) |
State | gas |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, IR Spectrum, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-101 | 744. | Zenkevich, 2005 | 25. m/0.20 mm/0.10 μm, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C |
Capillary | OV-101 | 730. | Zenkevich and Rodin, 2002 | Nitrogen, 60. C @ 0. min, 4. K/min, 240. C @ 0. min; Column length: 25. m; Column diameter: 0.25 mm |
References
Go To: Top, Gas phase thermochemistry data, IR Spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Guthrie, 1976
Guthrie, J.P.,
Thermodynamics of ester and orthoester formation from trifluoroacetic acid,
Can. J. Chem., 1976, 54, 202-209. [all data]
Kolesov, Slavutskaya, et al., 1972
Kolesov, V.P.; Slavutskaya, G.M.; Papina, T.S.,
Standard enthalpies of formation of perfluorodi-n-butyl ether and trifluoroacetic acid,
Russ. J. Phys. Chem. (Engl. Transl.), 1972, 46, 474. [all data]
Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P.,
Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]
Kolesov and Zenkov, 1966
Kolesov, V.P.; Zenkov, I.D.,
Standard of enthalpy of formation of trifluoroacetic acid,
Russ. J. Phys. Chem. (Engl. Transl.), 1966, 40, 743-744. [all data]
Zenkevich, 2005
Zenkevich, I.G.,
Experimentally measured retention indices., 2005. [all data]
Zenkevich and Rodin, 2002
Zenkevich, I.G.; Rodin, A.A.,
Gas Chromatographic One-Step Determination of Number of Hydroxyl Groups in Polyphenols with Mixed Derivatization Reagents,
Zh. Anal. Khim. (Rus.), 2002, 57, 7, 732-736. [all data]
Notes
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- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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