beryllium fluoride

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


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.

Quantity Value Units Method Reference Comment
Δfgas-796.01kJ/molReviewChase, 1998Data last reviewed in June, 1970
Quantity Value Units Method Reference Comment
gas,1 bar227.56J/mol*KReviewChase, 1998Data last reviewed in June, 1970

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 2000. to 6000.
A 61.51108
B 0.469968
C -0.094569
D 0.006520
E -3.228179
F -822.7292
G 289.9374
H -796.0060
ReferenceChase, 1998
Comment Data last reviewed in June, 1970

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:
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
222.8923.TE,ME,GSGreenbaum, Foster, et al., 1963Based on data from 823. to 1223. K.; AC
196.6911.N/ANovoselova, Semenenko, et al., 1958Based on data from 821. to 1002. K.; AC
209.6911.N/ASense and Stone, 1958Based on data from 802. to 1021. K.; AC
212.9856.GSSense, Snyder, et al., 1954Based on data from 745. to 968. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) A B C Reference Comment
1145.6 to 1372.6.141997577.291-211.665Cantor, 1965Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
236.4 ± 2.9750.TEBlauer, Greenbaum, et al., 1965Based on data from 713. to 795. K.; AC
231.8 ± 1.7755.MSBlauer, Greenbaum, et al., 1965AC

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.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

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, Gas phase thermochemistry data, Phase change data, References