Pirssonite

Formula : Na2Ca(CO3)2:2H2O

Space group: 
Orthorhombic - Pyramidal HM symbol (mm2) Space Group: F dd2
Dana class: 
15.2.1.1V - 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
242.106 102.600 -2657648 -2955377 239.050
Reaction properties

Pirssonite + 2H+ ⇌ 2HCO3- + Ca+2 + 2Na+ + 2H2O

298.15 K, 1 bar log10K: 11.75 ΔH°r: -19823 J·mol-1
T(°C) 0 25 60 100 150 200 250 300
log10K 12.09 11.75 11.43 11.25 11.18 11.13 10.99 10.54