Rutile (TiO2)
- Formula: O2Ti
- Molecular weight: 79.866
- CAS Registry Number: 1317-80-2
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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 (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 2000. |
|---|---|
| A | 16.08468 |
| B | 4.471654 |
| C | -2.767448 |
| D | 0.585459 |
| E | -0.355036 |
| F | -230.5244 |
| G | 28.16993 |
| H | -224.3599 |
| Reference | Chase, 1998 |
| Comment | rutile phase; Data last reviewed in December, 1973 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 298. | 13.19 | 11.91 | 11.93 | -0.00 |
| 300. | 13.25 | 12.00 | 11.93 | 0.02 |
| 400. | 15.25 | 16.12 | 12.47 | 1.46 |
| 500. | 16.28 | 19.65 | 13.56 | 3.04 |
| 600. | 16.91 | 22.67 | 14.84 | 4.70 |
| 700. | 17.34 | 25.31 | 16.15 | 6.42 |
| 800. | 17.64 | 27.65 | 17.44 | 8.17 |
| 900. | 17.86 | 29.74 | 18.69 | 9.94 |
| 1000. | 18.02 | 31.63 | 19.90 | 11.73 |
| 1100. | 18.14 | 33.35 | 21.04 | 13.54 |
| 1200. | 18.23 | 34.94 | 22.13 | 15.36 |
| 1300. | 18.30 | 36.40 | 23.18 | 17.19 |
| 1400. | 18.35 | 37.76 | 24.17 | 19.02 |
| 1500. | 18.38 | 39.02 | 25.12 | 20.86 |
| 1600. | 18.41 | 40.21 | 26.02 | 22.70 |
| 1700. | 18.44 | 41.33 | 26.89 | 24.54 |
| 1800. | 18.47 | 42.38 | 27.72 | 26.39 |
| 1900. | 18.51 | 43.38 | 28.52 | 28.23 |
| 2000. | 18.55 | 44.33 | 29.29 | 30.09 |
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
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