hydrogen fluoride
- Formula: FH
- Molecular weight: 20.00634
- IUPAC Standard InChIKey: KRHYYFGTRYWZRS-UHFFFAOYSA-N
- CAS Registry Number: 7664-39-3
- Chemical structure:
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Phase change 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 292.7 | K | N/A | Streng, 1971 | Uncertainty assigned by TRC = 0.25 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 190. | K | N/A | Streng, 1971 | Uncertainty assigned by TRC = 0.2 K; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
6.02 | 265. | Campbell and Campbell, 1934 | Based on data from 240. to 290. K.; AC |
6.02 | 255. | Simons, 1924 | Based on data from 190. to 320. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
273.17 to 303.09 | 4.9091 | 1556.559 | 24.199 | Sheft, Perkins, et al., 1973 | Coefficents calculated by NIST from author's data. |
198.5 to 292.9 | 4.15558 | 1142.985 | -17.993 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Streng, 1971
Streng, A.G.,
Miscibility and Compatibility of Some Liquid and Solidified Gases at Low Temperature,
J. Chem. Eng. Data, 1971, 16, 357. [all data]
Campbell and Campbell, 1934
Campbell, Alan Newton; Campbell, Alexandra Jean Robson,
The thermodynamics of binary liquid mixtures : formic acid and water,
Trans. Faraday Soc., 1934, 30, 1109, https://doi.org/10.1039/tf9343001109
. [all data]
Simons, 1924
Simons, Joseph,
THE PREPARATION, FREEZING POINT AND VAPOR PRESSURE OF HYDROGEN FLUORIDE,
J. Am. Chem. Soc., 1924, 46, 10, 2179-2183, https://doi.org/10.1021/ja01675a006
. [all data]
Sheft, Perkins, et al., 1973
Sheft, I.; Perkins, A.J.; Hyman, H.H.,
Anhydrous Hydrogen Fluoride: Vapor Pressure and Liquid Density,
J. Inorg. Nucl. Chem., 1973, 35, 11, 3677-3680, https://doi.org/10.1016/0022-1902(73)80055-7
. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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