Skip to main content
Thermoddem
Thermochemical and Mineralogical Tables for Geochemical Modeling
Databases
Phreeqc
Crunch
Geochemist’s workbench
Toughreact
Chess
Data consultation
Aqueous species
Gases
Minerals
Documents & References
BRGM Reports
Related papers
About
Database development
The Project - Early concepts
The Project - Evolutions
Toward high salinity solutions
Search form
Search in this site
Home
Data
MgOH
+
Formula : MgOH
+
Dernière mise à jour le
25.01.2021
THERMODYNAMICS
Individual properties (298.15 K)
M
g·mol
-1
V°
cm
3
·mol
-1
ΔGº
f
J·mol
-1
ΔHº
f
J·mol
-1
Sº
J·mol
-1
·k
-1
C
P
J·mol
-1
·K
-1
41.312
1.836
(Ref.: 97asho/sas) Shock, E.L., Sassani, D.C., Willis, M., and Sverjensky, D.A., 1997, Inorganic species in geologic fluids: Correlations among standard molal thermodynamic properties of aqueous ions and hydroxide complexes: Geochim. Cosmo. Acta, v. 61, no. 5, pp. 907-950.
-625846
(Ref.: 97sve/sho) Sverjensky, D.A., Shock, E.L., and Helgeson, H.C., 1997 Prediction of the thermodynamic properties of aqueous metal complexes to 1000 C and 5 kb: Geochim. Cosmo. Acta, v. 61, No. 7, pp. 1359-1412.
-689996
(Ref.: Internal calculation)
-79.914
(Ref.: 97asho/sas) Shock, E.L., Sassani, D.C., Willis, M., and Sverjensky, D.A., 1997, Inorganic species in geologic fluids: Correlations among standard molal thermodynamic properties of aqueous ions and hydroxide complexes: Geochim. Cosmo. Acta, v. 61, no. 5, pp. 907-950.
132.33
(Ref.: 97asho/sas) Shock, E.L., Sassani, D.C., Willis, M., and Sverjensky, D.A., 1997, Inorganic species in geologic fluids: Correlations among standard molal thermodynamic properties of aqueous ions and hydroxide complexes: Geochim. Cosmo. Acta, v. 61, no. 5, pp. 907-950.
Reaction properties
Mg
+
2
+ H
2
O ⇌ MgOH
+
+ H
+
298.15 K, 1 bar
log
10
K:
-11.68
ΔH°
r
:
62834 J·mol
-1
(Ref.: Internal calculation)
T(°C)
0
25
60
100
150
200
250
300
log
10
K
-12.67
-11.68
-10.51
-9.41
-8.31
-7.41
-6.65
-5.98