Newberyite

Formula : MgHPO4:3H2O

Family: 
Phosphates
Space group: 
Orthorhombic - Dipyramidal HM symbol (2/m 2/m 2/m) Space Group: P bca
Dana class: 
39.1.6.1VII - 39 Hydrated Acid Phosphates, etc ; 39.1 Hydrated Acid Phosphates, etc A+ [HXO4] . x(H2O) ; 39.1.5

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
174.330 83.020 (Ref.: 84nri) Nriagu J.O., 1984, Formation and stability of base metal phosphates in soils and sediments, Chap. 10. In: Phosphate Minerals, J.O. Nriagu and P.B. Moore (Eds), Springer-Verlag, ISBN 3-540-12757-7, 318-329 -2295900 (Ref.: 01wen/mus) Wentzel M.C., Musvoto E.V. and Ekama G.A., 2001. Application of integrated chemical - physical processes modelling to aeration treatment of anaerobic digester liquors. Environmental Technology, 22, 1287-1293
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

Newberyite + H+ ⇌ Mg+2 + H2PO4- + 3H2O

298.15 K, 1 bar log10K: 1.41 ΔH°r: J·mol-1 (Ref.: )
T(°C) 0 25 60 100 150 200 250 300
log10K 1.41 1.41 1.41 1.41 1.41 1.41 1.41 1.41
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
1.413048 0.000000 0.000000 0.000000 0.000000