HMnO₂^-

Formula : HMnO₂^-

Dernière mise à jour le 25.01.2021

Individual properties (298.15 K)

M g·mol^-1	V° cm³·mol^-1	ΔGº_f J·mol^-1	ΔHº_f J·mol^-1	Sº J·mol^-1·k^-1	C_P J·mol^-1·K^-1
87.945	-9.833 (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.	-506264 (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.	-627288 (Ref.: Internal calculation)	-38.074 (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.	-6.55 (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
4.3321	-21.9576	32.6365	-10.7190	85.8787	-15.5088	7.3994

Reaction properties

Mn⁺² + 2H₂O ⇌ HMnO₂^- + 3H⁺

298.15 K, 1 bar log₁₀K: -34.79 ΔH°_r:165700 J·mol^-1

T(°C)	0	25	60	100	150	200	250	300
log₁₀K	-37.47	-34.79	-31.78	-29.13	-26.64	-24.79	-23.41	-22.42

log₁₀K(T) = A + B·T + C·T^-1 + D·log₁₀(T) + E·T⁻² (T in Kelvin)

A	B	C	D	E
-299.639262	-0.052516	7724.219799	107.695918	-1056392.620435