CoCl4-2

Formula : CoCl4-2

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
200.743 -568528 (Ref.: 89pan/sus) Pan P. and Susak N.J. (1989) Co(II)-chloride and -bromide complexes in aqueous solutions up to 5 m NaX and 90[deg]C: Spectrophotometric study and geological implications. Geochimica et Cosmochimica Acta 53(2), 327-341. -703350 (Ref.: 89pan/sus) Pan P. and Susak N.J. (1989) Co(II)-chloride and -bromide complexes in aqueous solutions up to 5 m NaX and 90[deg]C: Spectrophotometric study and geological implications. Geochimica et Cosmochimica Acta 53(2), 327-341. 154.687 (Ref.: Internal calculation)
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
Reaction properties

4Cl- + Co+2 ⇌ CoCl4-2

298.15 K, 1 bar log10K: -2.09 ΔH°r:22570 J·mol-1 (Ref.: 89pan/sus) Pan P. and Susak N.J. (1989) Co(II)-chloride and -bromide complexes in aqueous solutions up to 5 m NaX and 90[deg]C: Spectrophotometric study and geological implications. Geochimica et Cosmochimica Acta 53(2), 327-341.
T(°C) 0 25 60 100 150 200 250 300
log10K -2.51 -2.09 -1.79 -1.75 -1.94 -2.16 -2.18 -1.65
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
3184.387637 0.463643 -172102.035294 -1152.893974 9358800.726667