NiO

Formula : NiO

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
74.693 -23.298 (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. -171204 (Ref.: 12bla) Blanc P., 2012, Mercury associated physical and chemical constants: updating of the THERMODDEM database, IMaHg project, rapport BRGM RP-61299-FR, 32p -246456 (Ref.: Internal calculation) -119.950 (Ref.: 12coo/oli) Cook, W.G., Olive, R.P., 2012. Pourbaix diagrams for the nickel-water system extended to high-subcritical and low-supercritical conditions. Corrosion Science 58, 284-290. 40.68 (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
-5.9974 -47.1897 42.5726 -9.6759 49.1649 -4.1735 -0.1255
Reaction properties

Ni+2 + H2O ⇌ NiO + 2H+

298.15 K, 1 bar log10K: -19.50 ΔH°r:98873 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K -21.08 -19.50 -17.68 -16.01 -14.35 -13.01 -11.85 -10.81
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
360.262414 0.057733 -24281.237872 -132.336244 1059672.035861