		J·K^-1 mol^-1						kJ·mol^-1
Sodium Borate (Na₂B₄O₇)								B₄Na₂O₇(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		-30.382		-3258.983		-3258.983		INFINITE
100		76.525		50.814		321.976		-27.116		-3268.658		-3208.196		1675.790
200		139.746		124.566		205.130		-16.113		-3274.087		-3145.347		821.480

298.15		186.774		189.490		189.490		0.		-3276.741		-3081.522		539.870

300		187.447		190.648		189.494		0.346		-3276.774		-3080.310		536.330
400		213.802		248.460		197.196		20.505		-3283.707		-3014.160		393.609
500		228.534		297.784		212.510		42.637		-3285.408		-2946.574		307.826

600		241.500		340.624		230.368		66.154		-3286.907		-2878.661		250.610
700		252.697		378.715		248.889		90.878		-3288.098		-2810.522		209.724
800		262.128		413.077		267.299		116.622		-3288.983		-2742.233		179.049
900		271.215		444.482		285.266		143.294		-3289.531		-2673.853		155.186
1000		279.700		473.502		302.657		170.845		-3289.721		-2605.430		136.094


1015.600		280.970		477.841		305.314		175.218		CRYSTAL <--> LIQUID

1100		287.583		500.534		319.431		199.214		3289.570 2537.005 120.472
1200		294.863		525.874		335.589		228.342		-3482.640		-2463.728		107.243
1300		301.541		549.743		351.153		258.167		-3480.079		-2378.921		95.586
1400		307.616		572.316		366.152		288.630		-3477.180		-2294.323		85.602
1500		313.089		593.718		380.616		319.653		-3473.995		-2209.943		76.957

1600		320.013		614.144		394.577		351.307		-3470.439		-2125.786		69.400
1700		327.017		633.755		408.074		383.658		-3466.432		-2041.866		62.739
1800		334.105		652.647		421.139		416.714		-3461.958		-1958.196		56.825
1900		341.276		670.903		433.807		450.482		-3457.003		-1874.786		51.541
2000		348.527		688.592		446.106		484.972		-3451.552		-1791.650		46.793

PREVIOUS: March 1963								CURRENT: March 1965

Sodium Borate (Na₂B₄O₇)								B₄Na₂O₇(cr)

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