S2O5-2

Formula : S2O5-2

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
144.129 33.687 (Ref.: 97asho/sas) Shock, E.L., Sassani, D.C., Willis, M., and Sverjensky, D.A., 1997, Inorganic species in geologic fluids: Correlations among standard molal thermodynamic properties of aqueous ions and hydroxide complexes: Geochim. Cosmo. Acta, v. 61, no. 5, pp. 907-950. -808608 (Ref.: 04chi) Chivot J., 2004. Thermodynamique des produits de corrosion. Fonctions thermodynamiques de solubilite, diagrammes E-pH des systemes Fe-H2O, Fe-CO2-H2O, Fe-S-H2O, Cr-H2O et Ni-H2O en fonction de la temperature. Document ANDRA, Collection Sciences et Techniques. -973684 (Ref.: Internal calculation) 154.000 (Ref.: 04chi) Chivot J., 2004. Thermodynamique des produits de corrosion. Fonctions thermodynamiques de solubilite, diagrammes E-pH des systemes Fe-H2O, Fe-CO2-H2O, Fe-S-H2O, Cr-H2O et Ni-H2O en fonction de la temperature. Document ANDRA, Collection Sciences et Techniques. -190.46 (Ref.: 97asho/sas) Shock, E.L., Sassani, D.C., Willis, M., and Sverjensky, D.A., 1997, Inorganic species in geologic fluids: Correlations among standard molal thermodynamic properties of aqueous ions and hydroxide complexes: Geochim. Cosmo. Acta, v. 61, no. 5, pp. 907-950.
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
30.8018 42.6538 7.2860 -13.3901 16.6168 -53.8615 11.8587
Reaction properties

2SO3-2 + 2H+ ⇌ S2O5-2 + H2O

298.15 K, 1 bar log10K: 12.85 ΔH°r:2605 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K 12.91 12.85 13.02 13.41 14.09 14.93 15.98 17.34
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
1439.832617 0.232070 -79779.597740 -518.915993 4927590.059776