		J·K^-1 mol^-1						kJ·mol^-1
Sodium Sulfide (Na₂S₂)								Na₂S₂(l)

Enthalpy Reference Temperature = T_r = 298.15 K								Standard State Pressure = p° = 0.1 MPa
T/K		C_p^°		S^°		-[G^°-H^°(T_r)]/T		H-H^°(T_r)		_fH^°		_fG^°		log K_f
0
100
200
250

298.15		98.625		172.365		172.365		0.		-380.114		-381.707		66.873

300		98.726		172.975		172.367		0.183		-380.119		-381.717		66.463
400		104.299		202.140		176.305		10.334		-390.405		-381.587		49.830
500		109.872		226.012		183.928		21.042		-393.756		-379.005		39.594


500.000		109.872		226.012		183.928		21.042		GLASS <--> LIQUID
500.000		124.683		226.012		183.928		21.042		TRANSITION

600		124.683		248.745		192.894		33.511		-394.489		-375.971		32.731
700		124.683		267.965		202.280		45.979		-394.619		-372.868		27.824

753.000		124.683		277.065		207.228		52.587		BETA <--> LIQUID

800		124.683		284.614		211.555		58.447		394.391 369.773 24.144
900		124.683		299.299		220.504		70.916		-500.211		-364.559		21.158
1000		124.683		312.436		229.052		83.384		-497.229		-349.647		18.264

1100		124.683		324.320		237.181		95.852		-494.321		-335.030		15.909
1200		124.683		335.168		244.901		108.321		-685.047		-315.794		13.746
1300		124.683		345.148		252.234		120.789		-680.541		-285.206		11.460
1400		124.683		354.388		259.205		133.257		-676.066		-254.963		9.513
1500		124.683		362.991		265.840		145.726		-671.622		-225.040		7.837

PREVIOUS:								CURRENT: December 1983

Sodium Sulfide (Na₂S₂)								Na₂S₂(l)

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