Al(OH)2+

Formula : Al(OH)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
60.996 5.942 (Ref.: 95pok/hel) Pokrovskii, V.A., and Helgeson, H.C., 1995, Thermodynamic properties of aqueous species and the solubilities of minerals at high pressures and temperatures: The system Al2O3-H2O-NaCl: Amer. J. Sci., 295, 1255-1342. -901472 (Ref.: 95pok/hel) Pokrovskii, V.A., and Helgeson, H.C., 1995, Thermodynamic properties of aqueous species and the solubilities of minerals at high pressures and temperatures: The system Al2O3-H2O-NaCl: Amer. J. Sci., 295, 1255-1342. -998771 (Ref.: Internal calculation) -27.547 (Ref.: 01tag/sch) Tagirov B., and Schott J., 2001. Aluminum speciation in crustal fluids revisited Geochim. Cosmochim. Acta (Helgeson's special issue), 65, p. 3965 3992. 154.78 (Ref.: 95pok/hel) Pokrovskii, V.A., and Helgeson, H.C., 1995, Thermodynamic properties of aqueous species and the solubilities of minerals at high pressures and temperatures: The system Al2O3-H2O-NaCl: Amer. J. Sci., 295, 1255-1342.
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
14.6440 -10.2926 26.3592 -11.7570 195.3930 -6.2760 3.3844
Reaction properties

Al+3 + 2H2O ⇌ Al(OH)2+ + 2H+

298.15 K, 1 bar log10K: -10.59 ΔH°r:111289 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K -12.35 -10.59 -8.51 -6.53 -4.47 -2.74 -1.20 0.20
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
302.429215 0.054152 -21423.312835 -108.325428 953986.136555