Lead silicate

Formula: O₄Pb₂Si
Molecular weight: 506.5
IUPAC Standard InChI: InChI=1S/O3Si.Pb/c1-4(2)3;/q-2;+2
IUPAC Standard InChIKey: AFPIWWDEGJLLCL-UHFFFAOYSA-N
CAS Registry Number: 13566-17-1
Chemical structure:
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Species with the same structure:
- lead(2+) silicate
Information on this page:
Other data available:
- Condensed phase thermochemistry data
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Solid Phase Heat Capacity (Shomate Equation)

C_p° = 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
C_p = 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 1200.	1200. to 2000.
A	11.16540	12.50410
B	88.23829	46.13461
C	-78.92450	-22.27710
D	24.55581	3.943719
E	0.144732	4.748402
F	-335.4369	-324.8360
G	35.96460	58.93009
H	-329.3200	-329.3200
Reference	Chase, 1998	Chase, 1998
Comment	Data last reviewed in June, 1965	Data last reviewed in June, 1965

Temperature (K)	C_p (cal/mol*K)	S° (cal/mol*K)	-(G° - H°_298.15)/T (cal/mol*K)	H° - H°_298.15 (kcal/mol)
298.	32.73	44.64	44.66	-0.01
300.	32.80	44.86	44.66	0.06
400.	36.31	54.79	45.99	3.52
500.	39.20	63.21	48.61	7.30
600.	41.40	70.56	51.67	11.34
700.	42.98	77.07	54.84	15.56
800.	44.04	82.89	57.99	19.92
900.	44.73	88.12	61.05	24.36
1000.	45.18	92.85	64.00	28.85
1100.	45.53	97.18	66.82	33.39
1200.	45.93	101.2	69.52	37.96

Temperature (K)	C_p (cal/mol*K)	S° (cal/mol*K)	-(G° - H°_298.15)/T (cal/mol*K)	H° - H°_298.15 (kcal/mol)
1200.	45.90	101.2	69.52	37.96
1300.	46.30	104.8	72.10	42.57
1400.	46.67	108.3	74.56	47.22
1500.	47.00	111.5	76.92	51.91
1600.	47.30	114.6	79.18	56.62
1700.	47.57	117.4	81.34	61.36
1800.	47.83	120.2	83.43	66.13
1900.	48.10	122.8	85.43	70.93
2000.	48.40	125.2	87.36	75.76

References

Go To: Top, Solid Phase Heat Capacity (Shomate Equation), Notes

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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