Fe9S10

Formula : Fe9S10

Family: 
Sulfides

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
823.283 171.798 (Ref.: 08bla) Blanc P. (2008) : Thermoddem - Selection de proprietes thermodynamiques pour les principales especes aqueuses et minerales porteuses de fer. Rapport final. Rapport BRGM/RP-56587-FR, 70p. -967778 (Ref.: Internal calculation) -950760 (Ref.: 05wal/pel) Waldner, P., Pelton, A.D. (2005) Thermodynamic modeling of the Fe-S system. Journal of Phase Equilibria and Diffusion 26, 23-38. 623.500 (Ref.: 05wal/pel) Waldner, P., Pelton, A.D. (2005) Thermodynamic modeling of the Fe-S system. Journal of Phase Equilibria and Diffusion 26, 23-38. 498.70 (Ref.: 05wal/pel) Waldner, P., Pelton, A.D. (2005) Thermodynamic modeling of the Fe-S system. Journal of Phase Equilibria and Diffusion 26, 23-38.
CP(T) = a + b·T + ·c·T-2 (T in Kelvin)
a
J·mol-1·K-1
 b * 103
J·mol-1·K-2
 c * 10-5
J·K·mol-1
 Maier Kelley Ref.
498.70 0.00 0.00 (Ref.: 05wal/pel) Waldner, P., Pelton, A.D. (2005) Thermodynamic modeling of the Fe-S system. Journal of Phase Equilibria and Diffusion 26, 23-38.
Reaction properties

Fe9S10 + 8H+ + 0.75H2O ⇌ 9Fe+2 + 9.5HS- + 0.25S2O3-2

298.15 K, 1 bar log10K: -55.46 ΔH°r:37210 J·mol-1 (Ref.: 05wal/pel) Waldner, P., Pelton, A.D. (2005) Thermodynamic modeling of the Fe-S system. Journal of Phase Equilibria and Diffusion 26, 23-38.
T(°C) 0 25 60 100 150 200 250 300
log10K -56.45 -55.46 -55.26 -56.05 -58.16 -61.42 -66.07 -72.86
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-9270.772541 -1.488029 501420.855055 3359.670969 -29876380.559657