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SED & PREDOM / SED |
A solubility diagram shows total dissolved concentrations
(on a logarithmic scale) usually plotted against a free concentration.
It is convenient to set the activity
The following diagram shows the solubility of calcite in the system
This diagram was obtained with the following input file:
3 8 1 1,
H+,CO2(g),CaCO3(s)
OH- , -14.00 -1 0 0, HCO3- , -7.83 -1 1 0
H2CO3(aq), -1.48 0 1 0, CaOH+ , -3.12 1 -1 1
CaCO3(aq), -5.22 0 0 1, CaHCO3+, 2.91 1 0 1
CO3-2 , -18.16 -2 1 0, Ca+2 , 9.74 2 -1 1
Ca(OH)2(s),-13.07 0 -1 1
ls,0,-7, H+,
lav,-5,-11,
la,-3.5, la,0