Hydrogen fluoride

Formula: F₇H₇
Molecular weight: 140.04440
IUPAC Standard InChI: InChI=1S/7FH/h7*1H
IUPAC Standard InChIKey: HKCCZYKCEQAFNJ-UHFFFAOYSA-N
CAS Registry Number: 74835-82-8
Chemical structure:
This structure is also available as a 2d Mol file
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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 (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 1400.	1400. to 6000.
A	190.4218	298.4016
B	139.2552	16.78692
C	-63.37463	-3.077199
D	12.90425	0.197351
E	-2.489848	-42.07723
F	-2173.337	-2275.719
G	701.0125	778.5671
H	-2102.548	-2102.548
Reference	Chase, 1998	Chase, 1998
Comment	Data last reviewed in June, 1977	Data last reviewed in June, 1977

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.	198.6	523.3	523.4	-0.04
300.	199.2	524.6	523.4	0.36
400.	221.2	585.2	531.5	21.48
500.	235.9	636.2	547.5	44.37
600.	247.0	680.3	566.0	68.53
700.	256.2	719.1	585.2	93.71
800.	264.0	753.8	604.1	119.7
900.	270.8	785.3	622.5	146.5
1000.	276.7	814.1	640.3	173.9
1100.	282.0	840.8	657.3	201.8
1200.	286.8	865.5	673.6	230.2
1300.	291.2	888.6	689.3	259.1
1400.	295.3	910.4	704.3	288.5

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)
1400.	294.9	910.4	704.3	288.5
1500.	298.6	930.8	718.7	318.2
1600.	301.8	950.2	732.6	348.2
1700.	304.5	968.6	746.0	378.5
1800.	306.8	986.1	758.8	409.1
1900.	308.9	1003.	771.2	439.8
2000.	310.7	1019.	783.2	470.8
2100.	312.4	1034.	794.8	502.0
2200.	313.8	1048.	806.0	533.3
2300.	315.2	1062.	816.8	564.7
2400.	316.4	1076.	827.3	596.3
2500.	317.5	1089.	837.5	628.0
2600.	318.5	1101.	847.4	659.8
2700.	319.4	1113.	857.1	691.7
2800.	320.2	1125.	866.4	723.7
2900.	321.0	1136.	875.5	755.8
3000.	321.7	1147.	884.4	787.9
3100.	322.4	1158.	893.0	820.1
3200.	323.0	1168.	901.5	852.4
3300.	323.5	1178.	909.7	884.7
3400.	324.0	1187.	917.7	917.1
3500.	324.5	1197.	925.6	949.5
3600.	324.9	1206.	933.2	982.0
3700.	325.3	1215.	940.7	1014.
3800.	325.7	1224.	948.0	1047.
3900.	326.0	1232.	955.2	1080.
4000.	326.3	1240.	962.2	1112.
4100.	326.6	1248.	969.1	1145.
4200.	326.9	1256.	975.9	1178.
4300.	327.1	1264.	982.5	1210.
4400.	327.3	1271.	989.0	1243.
4500.	327.5	1279.	995.3	1276.
4600.	327.7	1286.	1002.	1308.
4700.	327.9	1293.	1008.	1341.
4800.	328.1	1300.	1014.	1374.
4900.	328.2	1307.	1020.	1407.
5000.	328.4	1313.	1025.	1440.
5100.	328.5	1320.	1031.	1473.
5200.	328.7	1326.	1037.	1505.
5300.	328.8	1333.	1042.	1538.
5400.	329.0	1339.	1048.	1571.
5500.	329.1	1345.	1053.	1604.
5600.	329.2	1351.	1058.	1637.
5700.	329.4	1356.	1063.	1670.
5800.	329.5	1362.	1069.	1703.
5900.	329.7	1368.	1074.	1736.
6000.	329.8	1373.	1079.	1769.

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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