CdO2-2

Formula : CdO2-2

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
144.409 -16.065 (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. -280996 (Ref.: 91rai/fel) Rai D., Felmy A.R., and Szelmeczka R.W., 1991. Hydrolysis Constants and Ion Interaction Parameters For Cd(II) in Zero to High Concentrations of NaOH KOH, and the Solubility Product of Crystalline Cd(OH)2. Journal of Solution Chemistry, 20, p. 375 390. -421891 (Ref.: Internal calculation) -84.935 (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. -236.19 (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
3.3146 -24.4350 33.5988 -10.6169 14.5645 -63.7478 14.7235
Reaction properties

Cd+2 + 2H2O ⇌ CdO2-2 + 4H+

298.15 K, 1 bar log10K: -47.48 ΔH°r:225688 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K -51.18 -47.48 -43.44 -39.97 -36.83 -34.63 -33.15 -32.33
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-1019.666571 -0.169335 44897.736588 368.684580 -3573682.043684