Co(OH)2(pink-wc)

Formula : Co(OH)2

Family: 
Hydroxides

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
92.948 24.810 (Ref.: 01mer/vie) Lionel Mercury, Philippe Vieillard, Yves Tardy, 2001. Thermodynamics of ice polymorphs and 'ice-like' water in hydrates and hydroxides. Applied Geochemistry, Volume 16, Issue 2, February 2001, Pages 161-181 -460200 (Ref.: 98ply/zha) Plyasunova N. V., Zhang Y., and Muhammed M. (1998) Critical evaluation of thermodynamics of complex formation of metal ions in aqueous solutions. V. hydrolysis and hydroxo-complexes of Co2+ at 298.15 K. Hydrometallurgy 48(2), 153-169. -540800 (Ref.: 98ply/zha) Plyasunova N. V., Zhang Y., and Muhammed M. (1998) Critical evaluation of thermodynamics of complex formation of metal ions in aqueous solutions. V. hydrolysis and hydroxo-complexes of Co2+ at 298.15 K. Hydrometallurgy 48(2), 153-169. 95.538 (Ref.: Internal calculation)
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

Co(OH)2(pink-wc) + 2H+ ⇌ Co+2 + 2H2O

298.15 K, 1 bar log10K: 12.21 ΔH°r:-88460 J·mol-1 (Ref.: 98ply/zha) Plyasunova N. V., Zhang Y., and Muhammed M. (1998) Critical evaluation of thermodynamics of complex formation of metal ions in aqueous solutions. V. hydrolysis and hydroxo-complexes of Co2+ at 298.15 K. Hydrometallurgy 48(2), 153-169.
T(°C) 0 25 60 100 150 200 250 300
log10K 13.65 12.21 10.62 9.25 7.98 7.04 6.30 5.66
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-367.730076 -0.050273 23536.494159 131.965064 -938266.722539