Beryllium hydroxide
- Formula: BeHO
- Molecular weight: 26.0195
- IUPAC Standard InChI: InChI=1S/Be.H2O/h;1H2/q+1;/p-1
- IUPAC Standard InChIKey: XTIMETPJOMYPHC-UHFFFAOYSA-M
- CAS Registry Number: 20768-68-7
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Vibrational and/or electronic energy levels, 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 |
|---|---|---|---|---|---|
| ΔfH°gas | -27.400 | kcal/mol | Review | Chase, 1998 | Data last reviewed in December, 1975 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 50.093 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in December, 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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 1400. | 1400. to 6000. |
|---|---|---|
| A | 7.907730 | 12.90200 |
| B | 8.895161 | 1.018370 |
| C | -5.720761 | -0.201969 |
| D | 1.503720 | 0.014913 |
| E | -0.083545 | -1.493000 |
| F | -30.38621 | -34.28351 |
| G | 56.78119 | 61.72230 |
| H | -27.40010 | -27.40010 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1975 | Data last reviewed in December, 1975 |
Vibrational and/or electronic energy levels
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 by: Marilyn E. Jacox
State: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| BeO stretch | 1245.5 | T | Ar | IR | Thompson and Andrews, 1996 | ||
Additional references: Jacox, 1998, page 138
Notes
| T | Tentative assignment or approximate value |
References
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, 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]
Thompson and Andrews, 1996
Thompson, C.A.; Andrews, L.,
Reactions of Laser Ablated Be Atoms with H,
J. Phys. Chem., 1996, 100, 30, 12214, https://doi.org/10.1021/jp9606927
. [all data]
Jacox, 1998
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement A,
J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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