Arcanite

Formula : K2(SO4)

Space group: 
Orthorhombic - Dipyramidal HM symbol (2/m 2/m 2/m) Space Group: Pmcn
Dana class: 
28.2.1.2VI- 28 Sulfate Minerals ; 28.2 Anhydrous Acid and Sulfates (A+)2 XO4 ; 28.2.1

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
174.260 65.500 -1319580 -1437700 175.540 131.32
Reaction properties

Arcanite ⇌ 2K+ + SO4-2

298.15 K, 1 bar log10K: -1.85 ΔH°r: 24080 J·mol-1
T(°C) 0 25 60 100 150 200 250 300
log10K -2.32 -1.85 -1.51 -1.40 -1.53 -1.90 -2.52 -3.50