Aluminum hydroxide

Formula: AlHO
Molecular weight: 43.9889
CAS Registry Number: 20768-67-6
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Other data available:
Data at other public NIST sites:
- Gas Phase Kinetics Database
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Gas 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. - 1000.	1000. - 3000.	3000. - 6000.
A	0.713956	10.26867	14.42667
B	25.59441	3.327892	0.168581
C	-21.40478	-0.942048	-0.023114
D	6.938863	0.097526	0.001150
E	0.089036	-0.846788	-3.994384
F	-43.87643	-48.34250	-53.96750
G	46.35182	60.20124	61.66826
H	-43.00000	-43.00000	-43.00000
Reference	Chase, 1998	Chase, 1998	Chase, 1998
Comment	Data last reviewed in December, 1967	Data last reviewed in December, 1967	Data last reviewed in December, 1967

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.	7.63	51.72	51.73	-0.00
300.	7.64	51.78	51.73	0.01
400.	8.53	54.09	52.04	0.82
500.	9.38	56.09	52.65	1.72
600.	10.11	57.87	53.38	2.69
700.	10.70	59.47	54.13	3.74
800.	11.18	60.93	54.89	4.83
900.	11.58	62.27	55.64	5.97
1000.	11.93	63.51	56.37	7.15

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)
1000.	11.91	63.51	56.37	7.15
1100.	12.22	64.66	57.07	8.35
1200.	12.49	65.74	57.75	9.59
1300.	12.72	66.75	58.40	10.85
1400.	12.92	67.70	59.03	12.13
1500.	13.09	68.59	59.64	13.43
1600.	13.25	69.44	60.23	14.75
1700.	13.39	70.25	60.79	16.08
1800.	13.51	71.02	61.34	17.43
1900.	13.63	71.76	61.87	18.78
2000.	13.72	72.46	62.38	20.15
2100.	13.81	73.13	62.88	21.53
2200.	13.89	73.77	63.36	22.91
2300.	13.97	74.39	63.82	24.31
2400.	14.03	74.99	64.28	25.71
2500.	14.09	75.56	64.72	27.11
2600.	14.14	76.12	65.14	28.53
2700.	14.19	76.65	65.56	29.94
2800.	14.23	77.17	65.97	31.36
2900.	14.27	77.67	66.36	32.79
3000.	14.31	78.15	66.75	34.22

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)
3000.	14.31	78.15	66.75	34.22
3100.	14.35	78.62	67.12	35.65
3200.	14.38	79.08	67.49	37.09
3300.	14.41	79.52	67.85	38.53
3400.	14.43	79.95	68.20	39.97
3500.	14.46	80.37	68.54	41.41
3600.	14.48	80.78	68.87	42.86
3700.	14.50	81.17	69.20	44.31
3800.	14.52	81.56	69.52	45.76
3900.	14.54	81.94	69.83	47.21
4000.	14.56	82.31	70.14	48.67
4100.	14.57	82.67	70.44	50.12
4200.	14.59	83.02	70.74	51.58
4300.	14.60	83.36	71.03	53.04
4400.	14.61	83.70	71.31	54.50
4500.	14.62	84.03	71.59	55.96
4600.	14.64	84.35	71.86	57.43
4700.	14.65	84.66	72.13	58.89
4800.	14.66	84.97	72.40	60.36
4900.	14.67	85.27	72.66	61.82
5000.	14.68	85.57	72.91	63.29
5100.	14.68	85.86	73.16	64.76
5200.	14.69	86.14	73.41	66.23
5300.	14.70	86.42	73.65	67.70
5400.	14.71	86.70	73.89	69.17
5500.	14.71	86.97	74.13	70.64
5600.	14.72	87.23	74.36	72.11
5700.	14.73	87.50	74.59	73.58
5800.	14.73	87.75	74.81	75.05
5900.	14.74	88.00	75.03	76.53
6000.	14.74	88.25	75.25	78.00

References

Go To: Top, Gas 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, Gas Phase Heat Capacity (Shomate Equation), References

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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