CoS(alpha)

Formula : CoS

Family: 
Sulfides
Space group: 
Hexagonal - Dihexagonal Dipyramidal HM symbol (6/m 2/m 2/m) Space Group: P 63/mmc
Dana class: 
2.0.0.0II- 2 Sulfide Minerals ; 2.0 Sulfide Minerals Without Dana Classification Numbers ; Sulfide
High temperature: 
(Jaipurite)

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
90.999 16.700 (Ref.: 03dea) Dean J.A. 2003. Lange's Handbook of chemistry, 2nd edition. Science and technology press: Beijing (in Chinese). -85813 (Ref.: Internal calculation) -85740 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp. 62.340 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp.
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.
Reaction properties

CoS(alpha) + H+ ⇌ Co+2 + HS-

298.15 K, 1 bar log10K: -7.44 ΔH°r:11840 J·mol-1 (Ref.: 74nau/ryz) Naumov G.B., Ryzhenko B.N., and Khodakovsky I.L., 1974. Handbook of Thermodynamic Data. U.S. Geol. Surv.WRD 74 001, 328 pp.
T(°C) 0 25 60 100 150 200 250 300
log10K -7.66 -7.44 -7.25 -7.15 -7.14 -7.26 -7.53 -8.04
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-980.819851 -0.154380 52331.559063 355.056591 -3082617.891927