sodium tetrahydroborate
- Formula: BH4Na
- Molecular weight: 37.833
- IUPAC Standard InChI: InChI=1S/BH4.Na/h1H4;/q-1;+1
- IUPAC Standard InChIKey: YOQDYZUWIQVZSF-UHFFFAOYSA-N
- CAS Registry Number: 16940-66-2
- Chemical structure:
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Solid Phase Heat Capacity (Shomate Equation)
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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 2000. |
|---|---|
| A | 34.11286 |
| B | 176.9217 |
| C | -105.0448 |
| D | 20.74812 |
| E | 0.755099 |
| F | -206.4348 |
| G | 98.72650 |
| H | -191.8360 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1964 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 298. | 86.56 | 101.4 | 101.4 | 0.00 |
| 300. | 86.69 | 102.0 | 101.4 | 0.18 |
| 400. | 94.12 | 127.9 | 104.9 | 9.20 |
| 500. | 101.9 | 149.8 | 111.7 | 19.01 |
| 600. | 109.0 | 169.0 | 119.7 | 29.57 |
| 700. | 115.1 | 186.3 | 128.0 | 40.78 |
| 800. | 120.2 | 202.0 | 136.3 | 52.56 |
| 900. | 124.3 | 216.4 | 144.4 | 64.79 |
| 1000. | 127.5 | 229.7 | 152.3 | 77.39 |
| 1100. | 129.9 | 241.9 | 159.9 | 90.27 |
| 1200. | 131.5 | 253.3 | 167.2 | 103.3 |
| 1300. | 132.6 | 263.9 | 174.2 | 116.6 |
| 1400. | 133.2 | 273.7 | 181.0 | 129.8 |
| 1500. | 133.5 | 282.9 | 187.5 | 143.2 |
| 1600. | 133.6 | 291.6 | 193.7 | 156.5 |
| 1700. | 133.5 | 299.7 | 199.7 | 169.9 |
| 1800. | 133.5 | 307.3 | 205.5 | 183.2 |
| 1900. | 133.6 | 314.5 | 211.0 | 196.6 |
| 2000. | 134.0 | 321.4 | 216.4 | 210.0 |
References
Go To: Top, Solid Phase Heat Capacity (Shomate Equation), 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]
Notes
Go To: Top, Solid Phase Heat Capacity (Shomate Equation), References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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