Cr(OH)3(HPO4)-2

Formula : Cr(OH)3(HPO4)-2

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
198.967 -1968666 (Ref.: Internal calculation) -2340990 (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. -74.000 (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 + H2PO4- + 3H2O ⇌ Cr(OH)3(HPO4)-2 + 4H+

298.15 K, 1 bar log10K: -13.27 ΔH°r:59600 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 -14.25 -13.27 -12.22 -11.33 -10.52 -9.86 -9.22 -8.40
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
1429.423417 0.214334 -79389.319789 -520.191872 4164854.825966