beryllium oxide


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
Δfgas136.40kJ/molReviewChase, 1998Data last reviewed in June, 1975
Quantity Value Units Method Reference Comment
gas,1 bar197.63J/mol*KReviewChase, 1998Data last reviewed in June, 1975

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) 5000. to 6000.
A 276.3470
B -79.40290
C 9.964611
D -0.439391
E -515.6630
F -472.1220
G 149.9360
H 136.3980
ReferenceChase, 1998
Comment Data last reviewed in June, 1975

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
Δfliquid-542.71kJ/molReviewChase, 1998Data last reviewed in June, 1975
Quantity Value Units Method Reference Comment
liquid,1 bar35.86J/mol*KReviewChase, 1998Data last reviewed in June, 1975
Quantity Value Units Method Reference Comment
Δfsolid-609.4 ± 2.5kJ/molReviewCox, Wagman, et al., 1984CODATA Review value
Δfsolid-608.35kJ/molReviewChase, 1998α phase; Data last reviewed in June, 1975
Quantity Value Units Method Reference Comment
solid,1 bar13.77 ± 0.04J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value

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) 2780. to 5000.
A 79.49600
B 7.057823×10-8
C -1.617753×10-8
D 1.275735×10-9
E 9.949218×10-8
F -616.9559
G 66.38334
H -542.7066
ReferenceChase, 1998
Comment Data last reviewed in June, 1975

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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Temperature (K) 298. to 800.800. to 2780.298. to 1500.1500. to 2780.
A 3.35897447.0620524.6897848.35281
B 131.59225.59835952.563174.393033
C -140.4937-0.495570-36.35239-0.090144
D 56.209530.0545279.4879320.007823
E -0.536669-2.947373-1.053896-3.469105
F -615.8764-631.6794-614.6045-626.3113
G -18.6788454.7647926.3598358.35048
H -608.3536-608.3536-601.6592-601.6592
ReferenceChase, 1998Chase, 1998Chase, 1998Chase, 1998
Comment α phase; Data last reviewed in June, 1975 α phase; Data last reviewed in June, 1975 β phase; Data last reviewed in June, 1975 β phase; Data last reviewed in June, 1975

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: Coblentz Society, Inc.

Spectrum

A digitized version of this spectrum is not currently available.

Additional Data

View scan of original (hardcopy) spectrum.

Owner COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Source reference COBLENTZ NO. 1430
Date Not specified, most likely prior to 1970
Instrument Not specified, most likely a prism, grating, or hybrid spectrometer.
Data processing (NO SPECTRUM, ONLY SCANNED IMAGE IS AVAILABLE)

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


References

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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]


Notes

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