Tachyhydrite

Formula : Mg2CaCl6:12H2O

Space group: 
Trigonal - Rhombohedral or Pyramidal HM symbol (3 or -3) Space Group: P 3
Dana class: 
11.5.5.1IV- 11 Halide Complexes; Alumino-fluorides ; 11.5 Halide Complexes; Alumino-fluorides where(?)m B(?)6 ; 11.5.3

Dernière mise à jour le 11.06.2018

THERMODYNAMICS

Individual properties (298.15 K)
M
g·mol-1
cm3·mol-1
ΔGºf
J·mol-1
ΔHºf
J·mol-1
J·mol-1·k-1
CP
J·mol-1·K-1
517.586 311.807 -4997345
Reaction properties

Tachyhydrite ⇌ Ca+2 + 6Cl- + 2Mg+2 + 12H2O

298.15 K, 1 bar log10K: 17.39 ΔH°r: J·mol-1
T(°C) 0 25 60 100 150 200 250 300
log10K 17.39 17.39 17.39 17.39 17.39 17.39 17.39 17.39