dilithium tetraborate
- Formula: B4Li2O7
- Molecular weight: 169.122
- CAS Registry Number: 12007-60-2
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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 |
|---|---|---|---|---|---|
| ΔfH°liquid | -792.954 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1965 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 41.439 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1965 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH°solid | -803.602 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1965 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 37.247 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1965 |
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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 1190. - 3000. |
|---|---|
| A | 105.2030 |
| B | 6.094750 |
| C | -0.484458 |
| D | 0.188988 |
| E | -0.447619 |
| F | -849.0301 |
| G | 116.4450 |
| H | -792.9541 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1965 |
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 (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. - 1190. |
|---|---|
| A | -22.47780 |
| B | 213.9240 |
| C | -182.8000 |
| D | 61.65610 |
| E | 1.516250 |
| F | -799.8119 |
| G | -37.62751 |
| H | -803.6011 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1965 |
References
Go To: Top, Condensed phase thermochemistry data, 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, Condensed phase thermochemistry data, References
- Symbols used in this document:
S°liquid,1 bar Entropy of liquid at standard conditions (1 bar) S°solid Entropy of solid at standard conditions ΔfH°liquid Enthalpy of formation of liquid 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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