silicon carbide

Formula: CSi
Molecular weight: 40.0962
CAS Registry Number: 409-21-2
Information on this page:
Other data available:
Data at other public NIST sites:
- Gas Phase Kinetics Database
- X-ray Photoelectron Spectroscopy Database, version 5.0
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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 (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. - 1000.	1000. - 4000.	298. - 1100.	1100. - 4000.
A	20.55859	46.90222	20.50009	48.22227
B	64.57962	5.845968	63.37170	5.004148
C	-52.98827	-1.085410	-49.54023	-1.037594
D	16.95813	0.093021	14.82801	0.086339
E	-0.781847	-3.448876	-0.759969	-3.912333
F	-82.73693	-95.46716	-84.29337	-98.46542
G	19.90848	56.97520	20.30926	57.76221
H	-71.54598	-71.54598	-73.22000	-73.22000
Reference	Chase, 1998	Chase, 1998	Chase, 1998	Chase, 1998
Comment	α phase; Data last reviewed in March, 1966	α phase; Data last reviewed in March, 1966	β phase; Data last reviewed in March, 1966	β phase; Data last reviewed in March, 1966

Temperature (K)	C_p (J/mol*K)	S° (J/mol*K)	-(G° - H°_298.15)/T (J/mol*K)	H° - H°_298.15 (kJ/mol)
298.	26.74	16.46	16.49	-0.01
300.	26.93	16.64	16.49	0.05
400.	34.11	25.47	17.64	3.13
500.	38.59	33.59	20.03	6.78
600.	41.72	40.92	22.91	10.81
700.	44.02	47.54	25.97	15.10
800.	45.77	53.53	29.04	19.59
900.	47.16	59.01	32.07	24.24
1000.	48.33	64.04	35.02	29.02

Temperature (K)	C_p (J/mol*K)	S° (J/mol*K)	-(G° - H°_298.15)/T (J/mol*K)	H° - H°_298.15 (kJ/mol)
1000.	48.31	64.03	35.02	29.01
1100.	49.29	68.69	37.87	33.90
1200.	50.12	73.01	40.62	38.87
1300.	50.83	77.05	43.27	43.92
1400.	51.45	80.84	45.82	49.03
1500.	52.01	84.41	48.27	54.20
1600.	52.51	87.78	50.64	59.43
1700.	52.97	90.98	52.92	64.71
1800.	53.39	94.02	55.12	70.02
1900.	53.77	96.92	57.24	75.38
2000.	54.13	99.69	59.30	80.78
2100.	54.47	102.3	61.28	86.21
2200.	54.79	104.9	63.21	91.67
2300.	55.09	107.3	65.07	97.16
2400.	55.37	109.7	66.88	102.7
2500.	55.63	111.9	68.64	108.2
2600.	55.89	114.1	70.35	113.8
2700.	56.13	116.2	72.01	119.4
2800.	56.36	118.3	73.62	125.0
2900.	56.59	120.3	75.20	130.7
3000.	56.80	122.2	76.73	136.4
3100.	57.01	124.1	78.23	142.0
3200.	57.21	125.9	79.69	147.8
3300.	57.40	127.6	81.12	153.5
3400.	57.59	129.3	82.51	159.2
3500.	57.77	131.0	83.87	165.0
3600.	57.95	132.6	85.20	170.8
3700.	58.13	134.2	86.51	176.6
3800.	58.31	135.8	87.78	182.4
3900.	58.48	137.3	89.03	188.3
4000.	58.66	138.8	90.26	194.1

Temperature (K)	C_p (J/mol*K)	S° (J/mol*K)	-(G° - H°_298.15)/T (J/mol*K)	H° - H°_298.15 (kJ/mol)
298.	26.82	16.59	16.61	-0.01
300.	27.01	16.77	16.61	0.05
400.	34.12	25.60	17.77	3.13
500.	38.61	33.73	20.16	6.79
600.	41.78	41.07	23.04	10.81
700.	44.12	47.69	26.10	15.11
800.	45.90	53.70	29.18	19.62
900.	47.28	59.19	32.21	24.28
1000.	48.40	64.23	35.17	29.07
1100.	49.37	68.89	38.02	33.96

Temperature (K)	C_p (J/mol*K)	S° (J/mol*K)	-(G° - H°_298.15)/T (J/mol*K)	H° - H°_298.15 (kJ/mol)
1100.	49.35	68.89	38.02	33.95
1200.	50.17	73.22	40.78	38.93
1300.	50.85	77.26	43.43	43.98
1400.	51.44	81.05	45.98	49.10
1500.	51.95	84.62	48.44	54.27
1600.	52.40	87.99	50.81	59.49
1700.	52.80	91.18	53.09	64.75
1800.	53.16	94.20	55.29	70.04
1900.	53.49	97.09	57.42	75.38
2000.	53.79	99.84	59.47	80.74
2100.	54.07	102.5	61.45	86.14
2200.	54.32	105.0	63.38	91.55
2300.	54.55	107.4	65.24	97.00
2400.	54.77	109.7	67.04	102.5
2500.	54.97	112.0	68.80	108.0
2600.	55.16	114.1	70.50	113.5
2700.	55.33	116.2	72.16	119.0
2800.	55.50	118.2	73.77	124.5
2900.	55.65	120.2	75.33	130.1
3000.	55.79	122.1	76.86	135.7
3100.	55.93	123.9	78.35	141.2
3200.	56.06	125.7	79.80	146.8
3300.	56.18	127.4	81.22	152.5
3400.	56.30	129.1	82.60	158.1
3500.	56.41	130.7	83.95	163.7
3600.	56.52	132.3	85.27	169.4
3700.	56.62	133.9	86.57	175.0
3800.	56.72	135.4	87.83	180.7
3900.	56.82	136.9	89.07	186.4
4000.	56.92	138.3	90.28	192.0

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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