titanium dihydride
- Formula: H2Ti
- Molecular weight: 49.883
- IUPAC Standard InChI: InChI=1S/Ti.2H
- IUPAC Standard InChIKey: COEYXIBLSAIEKV-UHFFFAOYSA-N
- CAS Registry Number: 7704-98-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Titanium hydride
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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 1000. | 1000. to 2000. |
|---|---|---|
| A | -18.62650 | 117.8740 |
| B | 190.9860 | -60.43550 |
| C | -142.4470 | 33.68230 |
| D | 38.31300 | -6.548070 |
| E | 0.303605 | -16.17650 |
| F | -145.0850 | -219.8510 |
| G | -42.08210 | 127.9850 |
| H | -144.3480 | -144.3480 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in June, 1963 | Data last reviewed in June, 1963 |
| 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. | 30.07 | 29.69 | 29.71 | -0.01 |
| 300. | 30.26 | 29.89 | 29.71 | 0.05 |
| 400. | 39.33 | 39.85 | 31.01 | 3.54 |
| 500. | 47.26 | 49.51 | 33.75 | 7.88 |
| 600. | 53.80 | 58.72 | 37.15 | 12.94 |
| 700. | 59.03 | 67.42 | 40.86 | 18.60 |
| 800. | 63.09 | 75.58 | 44.69 | 24.71 |
| 900. | 66.18 | 83.20 | 48.55 | 31.18 |
| 1000. | 68.53 | 90.30 | 52.38 | 37.92 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 1000. | 68.40 | 90.30 | 52.38 | 37.92 |
| 1100. | 70.07 | 96.90 | 56.13 | 44.85 |
| 1200. | 71.31 | 103.0 | 59.78 | 51.92 |
| 1300. | 72.27 | 108.8 | 63.34 | 59.10 |
| 1400. | 73.06 | 114.2 | 66.78 | 66.37 |
| 1500. | 73.72 | 119.2 | 70.11 | 73.71 |
| 1600. | 74.26 | 124.0 | 73.33 | 81.11 |
| 1700. | 74.71 | 128.5 | 76.45 | 88.56 |
| 1800. | 75.04 | 132.8 | 79.46 | 96.05 |
| 1900. | 75.25 | 136.9 | 82.38 | 103.6 |
| 2000. | 75.30 | 140.7 | 85.20 | 111.1 |
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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