AlAsO4

Formula : AlAsO4

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
165.901 -9.730 (Ref.: 07mar/acc) Marini L, Accornero M (2007) Prediction of the thermodynamic properties of metal-arsenate and metal-arsenite aqueous complexes to high temperatures and pressures and some geological consequences. Environ Geol 52:1343-1363 -1194775 (Ref.: 07mar/acc) Marini L, Accornero M (2007) Prediction of the thermodynamic properties of metal-arsenate and metal-arsenite aqueous complexes to high temperatures and pressures and some geological consequences. Environ Geol 52:1343-1363 -1382591 (Ref.: Internal calculation) -155.645 (Ref.: 07mar/acc) Marini L, Accornero M (2007) Prediction of the thermodynamic properties of metal-arsenate and metal-arsenite aqueous complexes to high temperatures and pressures and some geological consequences. Environ Geol 52:1343-1363 -257.62 (Ref.: 07mar/acc) Marini L, Accornero M (2007) Prediction of the thermodynamic properties of metal-arsenate and metal-arsenite aqueous complexes to high temperatures and pressures and some geological consequences. Environ Geol 52:1343-1363
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
1.7489 -28.2939 35.3130 -10.4579 -127.4270 -64.0688 -0.1590
Reaction properties

Al+3 + H2AsO4- ⇌ AlAsO4 + 2H+

298.15 K, 1 bar log10K: -8.06 ΔH°r:65458 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K -9.15 -8.06 -6.89 -5.87 -4.86 -3.98 -3.11 -2.11
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
807.785401 0.138441 -41721.191291 -297.974782 1789205.677624