Gaylussite

Formula : CaNa2(CO3)2:5H2O

Space group: 
Monoclinic - Prismatic HM symbol (2/m) Space Group: I2/a
Dana class: 
15.2.2.1V - 15 Hydrated Carbonates ; 15.2 Hydrated Carbonates where A+m B++n (XO3)p . x(H2O), (m+n):p > 1:1 ; 15.2.1

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
296.152 148.820 -3372037 -3834386 386.680
Reaction properties

Gaylussite + 2H+ ⇌ 2HCO3- + Ca+2 + 2Na+ + 5H2O

298.15 K, 1 bar log10K: 11.23 ΔH°r: 1696 J·mol-1
T(°C) 0 25 60 100 150 200 250 300
log10K 11.27 11.23 11.38 11.77 12.42 13.10 13.67 13.92