beryllium hydroxide
- Formula: BeH2O2
- Molecular weight: 43.0269
- CAS Registry Number: 13327-32-7
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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 |
|---|---|---|---|---|---|
| ΔfH°gas | -676.55 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1975 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 233.96 | J/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 (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. - 1400. | 1400. - 6000. |
|---|---|---|
| A | 62.90602 | 96.46086 |
| B | 54.75517 | 7.604086 |
| C | -32.44228 | -1.374904 |
| D | 8.382938 | 0.087302 |
| E | -1.174173 | -12.60120 |
| F | -701.4141 | -730.7942 |
| G | 288.5203 | 317.4685 |
| H | -676.5528 | -676.5528 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1975 | Data last reviewed in December, 1975 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, 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°solid | -905.84 | kJ/mol | Review | Chase, 1998 | β phase; Data last reviewed in December, 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. - 1000. | 298. - 1000. |
|---|---|---|
| A | 55.85420 | 55.85420 |
| B | 147.1970 | 147.1970 |
| C | -139.3490 | -139.3490 |
| D | 51.28740 | 51.28740 |
| E | -2.050671 | -2.050671 |
| F | -934.7950 | -931.8670 |
| G | 68.05490 | 71.40210 |
| H | -905.8360 | -902.9070 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | β phase; Data last reviewed in December, 1975 | α phase; Data last reviewed in December, 1975 |
Vibrational and/or electronic energy levels
Go To: Top, Gas phase thermochemistry data, Condensed 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 | |
|---|---|---|---|---|---|---|---|
| OH stretch | 3805.9 | Ar | IR | Thompson and Andrews, 1996 | |||
| OBeO a-stretch | 1493.7 | Ar | IR | Thompson and Andrews, 1996 | |||
| Deformation | 456 | Ar | IR | Thompson and Andrews, 1996 | |||
Additional references: Jacox, 1998, page 281
References
Go To: Top, Gas phase thermochemistry data, Condensed 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, Condensed 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 ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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