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diboron trioxide

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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.

Quantity Value Units Method Reference Comment
Deltafgas-835.96kJ/molReviewChase, 1998Data last reviewed in June, 1971
Quantity Value Units Method Reference Comment
gas,1 bar283.77J/mol*KReviewChase, 1998Data last reviewed in June, 1971

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.

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Temperature (K) 3000. - 6000.
A 103.9017
B 2.228369
C -0.434734
D 0.029271
E -10.42071
F -891.5351
G 376.0328
H -835.9632
ReferenceChase, 1998
Comment Data last reviewed in June, 1971

Condensed 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.

Quantity Value Units Method Reference Comment
Deltafliquid-1253.36kJ/molReviewChase, 1998Data last reviewed in June, 1971
Quantity Value Units Method Reference Comment
liquid,1 bar78.45J/mol*KReviewChase, 1998Data last reviewed in June, 1971
Quantity Value Units Method Reference Comment
Deltafsolid-1273.5 ± 1.4kJ/molReviewCox, Wagman, et al., 1984CODATA Review value
Deltafsolid-1271.94kJ/molReviewChase, 1998Data last reviewed in June, 1971
Quantity Value Units Method Reference Comment
solid,1 bar53.97 ± 0.30J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
Quantity Value Units Method Reference Comment
solid53.95J/mol*KReviewChase, 1998Data last reviewed in June, 1971

Liquid 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.

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Temperature (K) 723. - 3000.
A 111.5690
B 23.17410
C -10.32210
D 1.533191
E 3.539531
F -1290.900
G 188.0810
H -1253.360
ReferenceChase, 1998
Comment Data last reviewed in June, 1971

Solid 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.

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View table.

Temperature (K) 298. - 723.
A 5.431501
B 272.5617
C -252.4956
D 97.65540
E -0.377274
F -1284.902
G -12.50564
H -1271.936
ReferenceChase, 1998
Comment Data last reviewed in June, 1971

Gas phase ion energetics 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 evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
IE (evaluated)13.5 ± 0.2eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
13.3 ± 0.5EIAsano and Kou, 1988LL
13.5 ± 0.15EIBagarat'yan and Nikitin, 1979LLK
14. ± 0.5EIBlackburn, Buchler, et al., 1966RDSH
13.7EIWhite, Sommer, et al., 1963RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
B+13.90 ± 0.18BO3EIBagarat'yan and Nikitin, 1979LLK
BO+19.8 ± 0.26BO2EIBagarat'yan and Nikitin, 1979LLK
BO2+13.0 ± 0.5BOEIAsano and Kou, 1988LL
BO2+18.35 ± 0.36BOEIBagarat'yan and Nikitin, 1979LLK

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics data, NIST Free Links, 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]

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Asano and Kou, 1988
Asano, M.; Kou, T., Thermochemical properties of SrBO2(g) and SrB2O4(s), J. Chem. Thermodyn., 1988, 20, 1149. [all data]

Bagarat'yan and Nikitin, 1979
Bagarat'yan, N.V.; Nikitin, O.T., Electron ionization of vapor over boron oxide, Vestn. Mosk. Univ. Khim., 1979, 34, 539. [all data]

Blackburn, Buchler, et al., 1966
Blackburn, P.E.; Buchler, A.; Stauffer, J.L., Thermodynamics of vaporization in the aluminum oxideboron oxide system, J. Phys. Chem., 1966, 70, 2469. [all data]

White, Sommer, et al., 1963
White, D.; Sommer, A.; Walsh, P.N.; Goldstein, H.W., The application of the time-of-flight mass spectrometer to the study of inoganic materials at elevated temperatures, Advan. Mass Spectrom., 1963, 2, 110. [all data]


Notes

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