CaCl2:4H2O

Formula : CaCl2:4H2O

Family: 
Chlorides
High temperature: 
Stable at room temperature. The structure is very responsive in temperature and/or water-vapor pressure
Geological context: 
In the natural environment known as hydrophilite. Occurs as product from volcanic fumaroles.

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
183.044 98.900 (Ref.: 03dea) Dean J.A. 2003. Lange's Handbook of chemistry, 2nd edition. Science and technology press: Beijing (in Chinese). -1733240 (Ref.: Internal calculation) -2009170 (Ref.: 87gar/par) CODATA87 Garvin D., Parker V.B and White H.J., 1987. CODATA Series on Thermodynamic Properties, Hemisphere, Washington, DC. 272.220 (Ref.: 87gar/par) CODATA87 Garvin D., Parker V.B and White H.J., 1987. CODATA Series on Thermodynamic Properties, Hemisphere, Washington, DC.
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

CaCl2:4H2O ⇌ Ca+2 + 2Cl- + 4H2O

298.15 K, 1 bar log10K: 5.36 ΔH°r:-11310 J·mol-1 (Ref.: 87gar/par) CODATA87 Garvin D., Parker V.B and White H.J., 1987. CODATA Series on Thermodynamic Properties, Hemisphere, Washington, DC.
T(°C) 0 25 60 100 150 200 250 300
log10K 5.54 5.36 5.17 5.03 4.90 4.74 4.46 3.87
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-1600.754684 -0.241697 86973.605221 582.293028 -4834179.278178