Celestite

Formula : SrSO4

Family: 
Space group: 
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pbnm
Dana class: 
28.3.1.2 (28) Anhydrous Acid and Sulfates (28.3) (A++) XO4 (28.3.1)Barite Group
High temperature: 
Low temperature mineral
Geological context: 
Sedimentary rocks.

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
183.684 46.250 -1345658 -1457789 121.960 107.80
Reaction properties

Celestite ⇌ SO4-2 + Sr+2

298.15 K, 1 bar log10K: -6.62 ΔH°r: -2451 J·mol-1
T(°C) 0 25 60 100 150 200 250 300
log10K -6.67 -6.62 -6.78 -7.14 -7.77 -8.58 -9.59 -10.96