Cr(OH)4(HPO4)(H2PO4)-4

Formula : Cr(OH)4(HPO4)(H2PO4)-4

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Individual properties (298.15 K)
M
g·mol-1
 V°
cm3·mol-1
 ΔGºf
J·mol-1
 ΔHºf
J·mol-1
 Sº
J·mol-1·k-1
 CP
J·mol-1·K-1
312.962 -3287950 (Ref.: Internal calculation) -3935070 (Ref.: 98zie/jon) Ziemniak S.E., Jones M.E. and Combs K.E.S. 1998. Solubility and phase behaviour of Cr(III) oxides in alkaline media at elevated temperatures. J. Solution Chemistry, Vol. 27, N1, p.33-66. -115.000 (Ref.: 98zie/jon) Ziemniak S.E., Jones M.E. and Combs K.E.S. 1998. Solubility and phase behaviour of Cr(III) oxides in alkaline media at elevated temperatures. J. Solution Chemistry, Vol. 27, N1, p.33-66.
HKF coefficients
a1·10
J·mol-1·bar-1
 a2·10-2
J·mol-1
 a3
J·K·mol-1·bar-1
 a4·10-4
J·K·mol-1
 c1
J·mol-1·K-1
 c2·10-4
J·K·mol-1
 ω·10-5
J·mol-1
Reaction properties

Cr+3 + 2H2PO4- + 4H2O ⇌ Cr(OH)4(HPO4)(H2PO4)-4 + 5H+

298.15 K, 1 bar log10K: -22.91 ΔH°r:53950 J·mol-1 (Ref.: 98zie/jon) Ziemniak S.E., Jones M.E. and Combs K.E.S. 1998. Solubility and phase behaviour of Cr(III) oxides in alkaline media at elevated temperatures. J. Solution Chemistry, Vol. 27, N1, p.33-66.
T(°C) 0 25 60 100 150 200 250 300
log10K -23.81 -22.91 -21.98 -21.24 -20.60 -20.08 -19.48 -18.52
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
2307.129617 0.345104 -127203.759556 -841.967346 6853847.526682