CdSO4:8/3H2O

Formula : CdSO4:2.67H2O

Family: 
Sulfates
Space group: 
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/n
Dana class: 
29.6.6.6 (29) Hydrated Acid and Sulfates (29.6) where A XO4 . x(H2O) (29.6.6) Rozenite Group (Monoclinic)

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
256.574 83.032 (Ref.: 95rob/hem) Robie R.A., and Hemingway B.S., 1995. Thermodynamic properties of minerals and related substances at 298.15 K and 1 Bar (105 Pascals) pressure and at higher temperatures. U.S. Geol. Survey Bull., 2131, 461 pp. -1464751 (Ref.: Internal calculation) -1729300 (Ref.: 89cox/wag) Cox J.D., Wagman D.D., and Medvedev V.A., 1989. CODATA Key Values for Thermodynamics. Hemisphere Publishing Corp., New York, 279 p. 229.650 (Ref.: 89cox/wag) Cox J.D., Wagman D.D., and Medvedev V.A., 1989. CODATA Key Values for Thermodynamics. Hemisphere Publishing Corp., New York, 279 p. 213.33 (Ref.: 82dek) DeKock, C.W., 1982, Thermodynamic properties of selected transition metal sulfates and their hydrates: U.S. Bur. Mines Info. Circ. 8910, 45 p.
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.
117.10 392.03 -18.36 (Ref.: 82dek) DeKock, C.W., 1982, Thermodynamic properties of selected transition metal sulfates and their hydrates: U.S. Bur. Mines Info. Circ. 8910, 45 p.
Reaction properties

CdSO4:8/3H2O ⇌ Cd+2 + SO4-2 + 2.67H2O

298.15 K, 1 bar log10K: -1.72 ΔH°r:-19126 J·mol-1 (Ref.: 89cox/wag) Cox J.D., Wagman D.D., and Medvedev V.A., 1989. CODATA Key Values for Thermodynamics. Hemisphere Publishing Corp., New York, 279 p.
T(°C) 0 25 60 100 150 200 250 300
log10K -1.48 -1.72 -2.15 -2.70 -3.46 -4.33 -5.38 -6.78
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-1671.845753 -0.267917 91743.077145 607.211011 -5352210.199180