Whitlockite(low)

Formula : Ca3(PO4)2

Family: 
Space group: 
Trigonal - Ditrigonal Pyramidal HM symbol (3m) Space Group: R 3c
Dana class: 
38.3.4.1VII - 38 Anhydrous Phosphates, etc ; 38.3 Anhydrous Phosphates, etc (A+ B++)3 (XO4)2 ; 38.3.4

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Reaction properties

Whitlockite(low) + 4H+ ⇌ 3Ca+2 + 2H2PO4-

298.15 K, 1 bar log10K: 8.39 ΔH°r:-113380 J·mol-1 (Ref.: 71par/wag)
T(°C) 0 25 60 100 150 200 250 300
log10K 10.13 8.39 6.20 3.98 1.47 -0.88 -3.25 -5.89