		J·K^-1 mol^-1						kJ·mol^-1
Sodium Peroxide (Na₂O₂)								Na₂O₂(cr)

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		0.		0.		INFINITE		-15.707		-507.339		-507.339		INFINITE
100		40.689		20.882		163.515		-14.263		-511.480		-491.475		256.720
200		75.479		61.785		102.600		-8.163		-513.202		-470.583		122.904

298.15		89.266		94.801		94.801		0.		-513.209		-449.627		78.773

300		89.408		95.354		94.803		0.165		-513.203		-449.233		78.218
400		97.721		122.268		98.416		9.541		-518.042		-427.560		55.834
500		103.767		144.748		105.495		19.626		-517.218		-405.020		42.312

600		108.445		164.093		113.687		30.244		-515.792		-382.706		33.318
700		112.332		181.108		122.127		41.287		-513.908		-360.668		26.913

785.000		115.253		194.149		129.230		50.961		ALPHA <--> BETA
785.000		113.596		201.451		129.230		56.694		TRANSITION

800		113.596		203.601		130.604		58.397		-505.952		-339.036		22.137
900		113.596		216.981		139.473		69.757		-503.773		-318.303		18.474
1000		113.596		228.949		147.833		81.117		-501.650		-297.810		15.556

1100		113.596		239.776		155.707		92.476		-499.616		-277.525		13.179
1200		113.596		249.660		163.130		103.836		-691.226		-252.540		10.993
1300		113.596		258.753		170.141		115.195		-687.607		-216.130		8.684
1400		113.596		267.171		176.775		126.555		-684.018		-179.997		6.716
1500		113.596		275.008		183.065		137.914		-680.457		-144.121		5.019

1600		113.596		282.340		189.043		149.274		-676.922		-108.480		3.542
1700		113.596		289.226		194.736		160.634		-673.412		-73.060		2.245
1800		113.596		295.719		200.168		171.993		-669.926		-37.846		1.098
1900		113.596		301.861		205.360		183.353		-666.465		-2.825		0.078
2000		113.596		307.688		210.332		194.712		-663.028		32.014		-0.836

2100		113.596		313.230		215.101		206.072		-659.616		66.682		-1.659
2200		113.596		318.515		219.682		217.431		-656.229		101.189		-2.403
2300		113.596		323.564		224.090		228.791		-652.869		135.542		-3.078
2400		113.596		328.399		228.336		240.150		-649.537		169.748		-3.694
2500		113.596		333.036		232.432		251.510		-646.233		203.817		-4.259

PREVIOUS: June 1963								CURRENT: June 1968

Sodium Peroxide (Na₂O₂)								Na₂O₂(cr)

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