Sodium cyanide

Formula: C₂N₂Na₂
Molecular weight: 98.0143
IUPAC Standard InChI: InChI=1S/CN.Na/c1-2;/q-1;+1
IUPAC Standard InChIKey: MNWBNISUBARLIT-UHFFFAOYSA-N
CAS Registry Number: 55186-09-9
Chemical structure:
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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 (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 600.	600. to 6000.
A	28.84699	28.67519
B	-7.875251	2.020441
C	16.63210	-0.458157
D	-8.064511	0.034633
E	-0.180117	-0.720239
F	-11.08570	-12.70540
G	118.5360	114.2360
H	-2.099910	-2.099910
Reference	Chase, 1998	Chase, 1998
Comment	Data last reviewed in March, 1966	Data last reviewed in March, 1966

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.	25.74	82.95	82.96	-0.00
300.	25.76	83.12	82.96	0.05
400.	26.72	90.68	83.98	2.68
500.	27.34	96.71	85.95	5.38
600.	27.87	101.7	88.17	8.14

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)
600.	27.73	101.7	88.17	8.13
700.	28.41	106.0	90.42	10.94
800.	28.89	109.9	92.62	13.81
900.	29.26	113.3	94.73	16.72
1000.	29.55	116.4	96.74	19.66
1100.	29.79	119.2	98.66	22.62
1200.	30.00	121.8	100.5	25.61
1300.	30.18	124.2	102.2	28.62
1400.	30.33	126.5	103.9	31.65
1500.	30.47	128.6	105.5	34.69
1600.	30.60	130.5	107.0	37.74
1700.	30.71	132.4	108.4	40.81
1800.	30.81	134.2	109.8	43.88
1900.	30.90	135.8	111.1	46.97
2000.	30.98	137.4	112.4	50.06
2100.	31.06	138.9	113.6	53.16
2200.	31.12	140.4	114.8	56.27
2300.	31.18	141.8	115.9	59.39
2400.	31.24	143.1	117.0	62.51
2500.	31.29	144.4	118.1	65.64
2600.	31.33	145.6	119.1	68.77
2700.	31.37	146.8	120.1	71.90
2800.	31.41	147.9	121.1	75.04
2900.	31.44	149.0	122.1	78.18
3000.	31.47	150.1	123.0	81.33
3100.	31.49	151.1	123.9	84.48
3200.	31.51	152.1	124.7	87.63
3300.	31.53	153.1	125.6	90.78
3400.	31.55	154.0	126.4	93.93
3500.	31.56	154.9	127.2	97.09
3600.	31.57	155.8	128.0	100.2
3700.	31.58	156.7	128.8	103.4
3800.	31.59	157.5	129.5	106.6
3900.	31.59	158.4	130.2	109.7
4000.	31.60	159.2	130.9	112.9
4100.	31.60	159.9	131.6	116.0
4200.	31.60	160.7	132.3	119.2
4300.	31.61	161.5	133.0	122.4
4400.	31.61	162.2	133.7	125.5
4500.	31.61	162.9	134.3	128.7
4600.	31.61	163.6	134.9	131.8
4700.	31.61	164.3	135.5	135.0
4800.	31.62	164.9	136.1	138.2
4900.	31.62	165.6	136.7	141.3
5000.	31.62	166.2	137.3	144.5
5100.	31.63	166.8	137.9	147.7
5200.	31.64	167.5	138.5	150.8
5300.	31.64	168.1	139.0	154.0
5400.	31.65	168.7	139.6	157.1
5500.	31.67	169.2	140.1	160.3
5600.	31.68	169.8	140.6	163.5
5700.	31.70	170.4	141.1	166.6
5800.	31.72	170.9	141.6	169.8
5900.	31.74	171.5	142.1	173.0
6000.	31.76	172.0	142.6	176.2

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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