HP2O7-3

Formula : HP2O7-3

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
174.951 36.151 (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. -1989158 (Ref.: 92gre/fug) Grenthe I., Fuger J., Konings R.J.M., Lemire R.J., Muller A.B., Nguyen Trung C., and Wanner H., 1992. Chemical Thermodynamics, Volume 1: Chemical Thermodynamics of Uranium. North Holland, Amsterdam, 1, 714 pp. -2291944 (Ref.: Internal calculation) 46.024 (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. -101.02 (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
34.8536 52.5335 3.4342 -13.7988 134.5520 -37.1568 19.4430
Reaction properties

2H2PO4- ⇌ HP2O7-3 + H2O + H+

298.15 K, 1 bar log10K: -8.41 ΔH°r:27426 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K -8.84 -8.41 -7.90 -7.44 -7.01 -6.73 -6.61 -6.70
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-567.329288 -0.093833 27021.233202 207.293106 -1481561.653909