Ga(OH)2+

Formula : Ga(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
103.738 9.630 (Ref.: 97ben/dia) Benezeth P., Diakonov I.I., Pokrovski G.S., Dandurand J.L., Schott J. and Khodakovsky I.L., 1997. Gallium speciation in aqueous solution. Experimental study and modelling: Part 2. Solubility of alpha-GaOOH in acidic solutions from 150 to 250C and hydrolysis constants of gallium (III) to 300oC. Geochim. Cosmochim. Acta, 61, pp. 1345-1357 -594881 (Ref.: 97ben/dia) Benezeth P., Diakonov I.I., Pokrovski G.S., Dandurand J.L., Schott J. and Khodakovsky I.L., 1997. Gallium speciation in aqueous solution. Experimental study and modelling: Part 2. Solubility of alpha-GaOOH in acidic solutions from 150 to 250C and hydrolysis constants of gallium (III) to 300oC. Geochim. Cosmochim. Acta, 61, pp. 1345-1357 -672710 (Ref.: Internal calculation) 50.292 (Ref.: 97ben/dia) Benezeth P., Diakonov I.I., Pokrovski G.S., Dandurand J.L., Schott J. and Khodakovsky I.L., 1997. Gallium speciation in aqueous solution. Experimental study and modelling: Part 2. Solubility of alpha-GaOOH in acidic solutions from 150 to 250C and hydrolysis constants of gallium (III) to 300oC. Geochim. Cosmochim. Acta, 61, pp. 1345-1357 77.94 (Ref.: 97ben/dia) Benezeth P., Diakonov I.I., Pokrovski G.S., Dandurand J.L., Schott J. and Khodakovsky I.L., 1997. Gallium speciation in aqueous solution. Experimental study and modelling: Part 2. Solubility of alpha-GaOOH in acidic solutions from 150 to 250C and hydrolysis constants of gallium (III) to 300oC. Geochim. Cosmochim. Acta, 61, pp. 1345-1357
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
12.8156 -1.2636 24.5559 -11.5729 69.4628 3.2217 -0.2343
Reaction properties

Ga+3 + 2H2O ⇌ Ga(OH)2+ + 2H+

298.15 K, 1 bar log10K: -7.27 ΔH°r:74711 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K -8.50 -7.27 -5.96 -4.91 -4.10 -3.73 -3.74 -4.25
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-932.244399 -0.172564 43134.661568 347.857553 -2578005.641669