Mg3(PO4)2:22H2O

Formula : Mg3(PO4)2:22H2O

Family: 
Phosphates

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Individual properties (298.15 K)
M
g·mol-1
 V°
cm3·mol-1
 ΔGºf
J·mol-1
 ΔHºf
J·mol-1
 Sº
J·mol-1·k-1
 CP
J·mol-1·K-1
659.194 401.947 (Ref.: 63wyc) Wyckoff, R.W.G., 1963, Crystal Structures, Second edition, tome 4, Interscience Publishers, New York, p. 320-322. -8766188 (Ref.: 63tay/fra) Taylor A.W., Frazier A.W., Gurney E.L. and Smith J.P., 1963. Solubility product of di- and tri-magnesium phosphates and the dissociation of magnesium phosphate solutions. Trans. Farad. Soc., 59, 1585-1589
CP(T) = a + b·T + ·c·T-2 (T in Kelvin)
a
J·mol-1·K-1
 b * 103
J·mol-1·K-2
 c * 10-5
J·K·mol-1
 Maier Kelley Ref.
Reaction properties

Mg3(PO4)2:22H2O + 4H+ ⇌ 3Mg+2 + 2H2PO4- + 22H2O

298.15 K, 1 bar log10K: 16.02 ΔH°r: J·mol-1 (Ref.: )
T(°C) 0 25 60 100 150 200 250 300
log10K 16.02 16.02 16.02 16.02 16.02 16.02 16.02 16.02
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
16.022354 0.000000 0.000000 0.000000 0.000000