Hopeite(alpha)

Formula : Zn3(PO4)2:4H2O

Family: 
Space group: 
Orthorhombic - Dipyramidal HM symbol (2/m 2/m 2/m) Space Group: P nma
Dana class: 
40.3.4.1VII - 40 Hydrated Phosphates, etc ; 40.3 Hydrated Phosphates, etc where (A++)3 (XO4)2 . x(H2O) ; 40.3.4

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Individual properties (298.15 K)
Reaction properties

Hopeite(alpha) + 4H+ ⇌ 2H2PO4- + 3Zn+2 + 4H2O

298.15 K, 1 bar log10K: 3.82 ΔH°r:-106676 J·mol-1 (Ref.: 84vie/tar, after 78yag)
T(°C) 0 25 60 100 150 200 250 300
log10K 5.57 3.82 1.93 0.35 -1.08 -2.20 -3.26 -4.56