Kainite

Formula : KMgClSO4:3H2O

Space group: 
Monoclinic - Prismatic HM symbol (2/m) Space Group: C 2/m
Dana class: 
31.7.1.13 2/m ; 31.7 Hydrated Sulfates Containing Hydroxyl or Halogen where (A+ B++)2 (XO4) Zq.x(H2O) ; 31.6.7

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
248.965 44.150 -2325613 -2640100 296.222
Reaction properties

Kainite ⇌ Cl- + K+ + Mg+2 + SO4-2 + 3H2O

298.15 K, 1 bar log10K: -0.19 ΔH°r: -12950 J·mol-1
T(°C) 0 25 60 100 150 200 250 300
log10K -0.03 -0.19 -0.46 -0.76 -1.16 -1.65 -2.38 -3.58