Ca4(OH)2(AsO4)2:4H2O

Formula : Ca4(OH)2(AsO4)2:4H2O

Family: 
Arsenate

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
544.226 -4928679 (Ref.: 99bot/bro) Bothe JV, Brown PW (1999) The stabilities of calcium arsenates at 23 C. J Hazard Mater B 69:197-207
CP(T) = a + b·T + ·c·T-2 (T in Kelvin)
a
J·mol-1·K-1
 b * 103
J·mol-1·K-2
 c * 10-5
J·K·mol-1
 Maier Kelley Ref.
Reaction properties

Ca4(OH)2(AsO4)2:4H2O + 6H+ ⇌ 2H2AsO4- + 4Ca+2 + 6H2O

298.15 K, 1 bar log10K: 37.10 ΔH°r: J·mol-1 (Ref.: )
T(°C) 0 25 60 100 150 200 250 300
log10K 37.10 37.10 37.10 37.10 37.10 37.10 37.10 37.10
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
37.096096 0.000000 0.000000 0.000000 0.000000