beryllium fluoride
- Formula: BeF2
- Molecular weight: 47.008988
- CAS Registry Number: 7787-49-7
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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:
AC - William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
53.25 | 923. | TE,ME,GS | Greenbaum, Foster, et al., 1963 | Based on data from 823. to 1223. K.; AC |
46.99 | 911. | N/A | Novoselova, Semenenko, et al., 1958 | Based on data from 821. to 1002. K.; AC |
50.10 | 911. | N/A | Sense and Stone, 1958 | Based on data from 802. to 1021. K.; AC |
50.88 | 856. | GS | Sense, Snyder, et al., 1954 | Based on data from 745. to 968. 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 |
---|---|---|---|---|---|
1145.6 to 1372. | 6.13628 | 7577.291 | -211.665 | Cantor, 1965 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
56.50 ± 0.69 | 750. | TE | Blauer, Greenbaum, et al., 1965 | Based on data from 713. to 795. K.; AC |
55.40 ± 0.41 | 755. | MS | Blauer, Greenbaum, et al., 1965 | AC |
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.
Greenbaum, Foster, et al., 1963
Greenbaum, Michael A.; Foster, James N.; Arin, M. Louis; Farber, Milton,
THE THERMODYNAMIC AND PHYSICAL PROPERTIES OF BERYLLIUM COMPOUNDS. I. ENTHALPY AND ENTROPY OF VAPORIZATION OF BERYLLIUM FLUORIDE 1,2,
J. Phys. Chem., 1963, 67, 1, 36-40, https://doi.org/10.1021/j100795a009
. [all data]
Novoselova, Semenenko, et al., 1958
Novoselova, A.V.; Semenenko, K.N.; Turova, O.Ya.,
Vestn. Mosk. Univ., Ser. Mat., Mekh., Astron., Fiz., Khim., 1958, 13, 139. [all data]
Sense and Stone, 1958
Sense, Karl A.; Stone, Richard W.,
Vapor Pressures and Molecular Composition of Vapors of the Sodium Fluoride-Beryllium Fluoride System,
J. Phys. Chem., 1958, 62, 4, 453-457, https://doi.org/10.1021/j150562a020
. [all data]
Sense, Snyder, et al., 1954
Sense, K.A.; Snyder, M.J.; Clegg, J.W.,
The Vapor Pressure of Beryllium Fluoride,
J. Phys. Chem., 1954, 58, 3, 223-224, https://doi.org/10.1021/j150513a008
. [all data]
Cantor, 1965
Cantor, S.,
Vapor Pressures of BeF2 and NiF2,
J. Chem. Eng. Data, 1965, 10, 3, 237-238, https://doi.org/10.1021/je60026a008
. [all data]
Blauer, Greenbaum, et al., 1965
Blauer, Jay A.; Greenbaum, Michael A.; Farber, Milton,
The Thermodynamic and Physical Properties of Beryllium Compounds. VII. Enthalpy and Entropy of Sublimation of Beryllium Fluoride,
J. Phys. Chem., 1965, 69, 3, 1069-1070, https://doi.org/10.1021/j100887a508
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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