beryllium orthosilicate
- Formula: Be2O4Si
- Molecular weight: 110.1075
- IUPAC Standard InChI: InChI=1S/2Be.O4Si/c;;1-5(2,3)4/q2*+2;-4
- IUPAC Standard InChIKey: QZVSYHUREAVHQG-UHFFFAOYSA-N
- CAS Registry Number: 15191-85-2
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Beryllium silicate
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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 900. | 900. to 3000. |
|---|---|---|
| A | 107.0811 | 206.0448 |
| B | 62.44160 | -25.85570 |
| C | 83.90259 | 12.01118 |
| D | -77.62952 | -1.455296 |
| E | -3.162059 | -16.73650 |
| F | -2163.161 | -2226.603 |
| G | 154.2218 | 246.2895 |
| H | -2117.230 | -2117.230 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in June, 1965 | Data last reviewed in June, 1965 |
| 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. | 95.48 | 64.03 | 64.20 | -0.05 |
| 300. | 96.13 | 64.68 | 64.20 | 0.14 |
| 400. | 120.8 | 96.02 | 68.28 | 11.10 |
| 500. | 136.9 | 124.8 | 76.75 | 24.02 |
| 600. | 149.2 | 150.9 | 86.97 | 38.35 |
| 700. | 158.8 | 174.6 | 97.82 | 53.77 |
| 800. | 166.0 | 196.4 | 108.8 | 70.04 |
| 900. | 170.7 | 216.2 | 119.7 | 86.90 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 900. | 170.8 | 216.2 | 119.6 | 86.87 |
| 1000. | 174.0 | 234.3 | 130.2 | 104.1 |
| 1100. | 176.4 | 251.0 | 140.4 | 121.6 |
| 1200. | 178.2 | 266.5 | 150.3 | 139.4 |
| 1300. | 179.6 | 280.8 | 159.8 | 157.3 |
| 1400. | 180.9 | 294.1 | 168.9 | 175.3 |
| 1500. | 181.9 | 306.6 | 177.7 | 193.4 |
| 1600. | 182.9 | 318.4 | 186.1 | 211.7 |
| 1700. | 183.9 | 329.5 | 194.2 | 230.0 |
| 1800. | 184.8 | 340.1 | 202.0 | 248.4 |
| 1900. | 185.7 | 350.1 | 209.6 | 267.0 |
| 2000. | 186.6 | 359.6 | 216.8 | 285.6 |
| 2100. | 187.4 | 368.8 | 223.9 | 304.3 |
| 2200. | 188.3 | 377.5 | 230.6 | 323.1 |
| 2300. | 189.2 | 385.9 | 237.2 | 342.0 |
| 2400. | 190.2 | 394.0 | 243.6 | 360.9 |
| 2500. | 191.1 | 401.7 | 249.7 | 380.0 |
| 2600. | 192.0 | 409.3 | 255.7 | 399.1 |
| 2700. | 192.9 | 416.5 | 261.6 | 418.4 |
| 2800. | 193.7 | 423.5 | 267.2 | 437.7 |
| 2900. | 194.6 | 430.4 | 272.7 | 457.1 |
| 3000. | 195.4 | 437.0 | 278.1 | 476.6 |
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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