Magnesium fluoride

Formula: F₄Mg₂
Molecular weight: 124.6036
CAS Registry Number: 58790-41-3
Information on this page:
Other data available:
- Gas phase thermochemistry data
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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. to 6000.
A	31.01341
B	0.663033
C	-0.179050
D	0.015247
E	-0.500169
F	-421.6520
G	115.0490
H	-410.7010
Reference	Chase, 1998
Comment	Data last reviewed in December, 1975

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.	25.56	80.51	80.52	-0.00
300.	25.64	80.68	80.52	0.05
400.	28.12	88.45	81.56	2.75
500.	29.30	94.86	83.60	5.63
600.	29.96	100.3	85.94	8.60
700.	30.37	104.9	88.33	11.62
800.	30.66	109.0	90.66	14.67
900.	30.86	112.6	92.90	17.74
1000.	31.01	115.9	95.04	20.84
1100.	31.13	118.8	97.07	23.95
1200.	31.23	121.6	99.00	27.06
1300.	31.31	124.1	100.8	30.19
1400.	31.38	126.4	102.6	33.33
1500.	31.43	128.5	104.2	36.47
1600.	31.48	130.6	105.8	39.61
1700.	31.52	132.5	107.3	42.76
1800.	31.56	134.3	108.8	45.92
1900.	31.59	136.0	110.2	49.07
2000.	31.62	137.6	111.5	52.24
2100.	31.64	139.2	112.8	55.40
2200.	31.66	140.6	114.0	58.56
2300.	31.68	142.0	115.2	61.73
2400.	31.70	143.4	116.3	64.90
2500.	31.71	144.7	117.5	68.07
2600.	31.72	145.9	118.5	71.24
2700.	31.73	147.1	119.6	74.42
2800.	31.74	148.3	120.6	77.59
2900.	31.74	149.4	121.5	80.76
3000.	31.75	150.5	122.5	83.94
3100.	31.75	151.5	123.4	87.11
3200.	31.75	152.5	124.3	90.29
3300.	31.75	153.5	125.2	93.46
3400.	31.75	154.4	126.0	96.64
3500.	31.75	155.4	126.8	99.81
3600.	31.75	156.3	127.7	103.0
3700.	31.75	157.1	128.4	106.2
3800.	31.75	158.0	129.2	109.3
3900.	31.75	158.8	130.0	112.5
4000.	31.75	159.6	130.7	115.7
4100.	31.74	160.4	131.4	118.9
4200.	31.74	161.2	132.1	122.0
4300.	31.74	161.9	132.8	125.2
4400.	31.74	162.6	133.5	128.4
4500.	31.74	163.3	134.1	131.6
4600.	31.74	164.0	134.7	134.7
4700.	31.73	164.7	135.4	137.9
4800.	31.74	165.4	136.0	141.1
4900.	31.74	166.0	136.6	144.3
5000.	31.74	166.7	137.2	147.4
5100.	31.74	167.3	137.8	150.6
5200.	31.75	167.9	138.4	153.8
5300.	31.75	168.5	138.9	156.9
5400.	31.76	169.1	139.5	160.1
5500.	31.76	169.7	140.0	163.3
5600.	31.77	170.3	140.6	166.5
5700.	31.78	170.8	141.1	169.7
5800.	31.80	171.4	141.6	172.8
5900.	31.81	171.9	142.1	176.0
6000.	31.83	172.5	142.6	179.2

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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