KAlO2

Formula : KAlO2

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
98.079 31.127 (Ref.: 97apok/hel) Pokrovskii V.A., and Helgeson H.C., 1997a. Thermodynamic properties of aqueous species and the solubilities of minerals at high pressures and temperatures: the system Al2O3 H2O KOH. Chemical Geology, 137, p. 221 242. -1106171 (Ref.: Internal calculation) -1150525 (Ref.: 97apok/hel) Pokrovskii V.A., and Helgeson H.C., 1997a. Thermodynamic properties of aqueous species and the solubilities of minerals at high pressures and temperatures: the system Al2O3 H2O KOH. Chemical Geology, 137, p. 221 242. 149.369 (Ref.: 97apok/hel) Pokrovskii V.A., and Helgeson H.C., 1997a. Thermodynamic properties of aqueous species and the solubilities of minerals at high pressures and temperatures: the system Al2O3 H2O KOH. Chemical Geology, 137, p. 221 242. 16.14 (Ref.: 97apok/hel) Pokrovskii V.A., and Helgeson H.C., 1997a. Thermodynamic properties of aqueous species and the solubilities of minerals at high pressures and temperatures: the system Al2O3 H2O KOH. Chemical Geology, 137, p. 221 242.
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
25.1333 28.8102 12.7344 -12.8185 5.8325 5.0710 -0.2092
Reaction properties

Al+3 + K+ + 2H2O ⇌ KAlO2 + 4H+

298.15 K, 1 bar log10K: -24.22 ΔH°r:211675 J·mol-1 (Ref.: 97apok/hel) Pokrovskii V.A., and Helgeson H.C., 1997a. Thermodynamic properties of aqueous species and the solubilities of minerals at high pressures and temperatures: the system Al2O3 H2O KOH. Chemical Geology, 137, p. 221 242.
T(°C) 0 25 60 100 150 200 250 300
log10K -27.62 -24.22 -20.34 -16.81 -13.34 -10.57 -8.24 -6.19
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
648.984317 0.098197 -44681.058771 -231.704043 1841147.975626