MgPO4-

Formula : MgPO4-

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
119.276 -1508562 (Ref.: 81tur/whi) Turner D.R., Whitfield M. and Dickson A.G., 1981. The equilibrium speciation of dissolved components in freshwater and seawater at 25 C and 1 atm. pressure. Geochim. Cosmochim. Acta, 45, p. 855 881. -1738430 (Ref.: 96bou) Bourbon X., 1996. Selection de donnees thermodynamiques afferentes aux corrections de Temperature sur les equilibres chimiques (Sodium, Potassium, cesium, Magnesium, Calcium, Strontium, Cobalt, Nickel, Paladium). ANDRA Report, CRP OHEM 96.001. -221.576 (Ref.: Internal calculation)
HKF coefficients
a1·10
J·mol-1·bar-1
 a2·10-2
J·mol-1
 a3
J·K·mol-1·bar-1
 a4·10-4
J·K·mol-1
 c1
J·mol-1·K-1
 c2·10-4
J·K·mol-1
 ω·10-5
J·mol-1
Reaction properties

Mg+2 + H2PO4- ⇌ MgPO4- + 2H+

298.15 K, 1 bar log10K: -14.71 ΔH°r:31170 J·mol-1 (Ref.: 96bou) Bourbon X., 1996. Selection de donnees thermodynamiques afferentes aux corrections de Temperature sur les equilibres chimiques (Sodium, Potassium, cesium, Magnesium, Calcium, Strontium, Cobalt, Nickel, Paladium). ANDRA Report, CRP OHEM 96.001.
T(°C) 0 25 60 100 150 200 250 300
log10K -15.20 -14.71 -14.13 -13.58 -13.00 -12.46 -11.87 -11.11
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
1092.096272 0.169337 -61181.105172 -400.196595 3392939.875416