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Table 7 Thermodynamic equilibrium constants used to account for aqueous speciation for strontium sorption model [37].

From: Surface complexation model for strontium sorption to amorphous silica and goethite

Mass balance reactions

log K

H2O = H+ + OH-

-14

HCO3- = CO3-- + H+

-10.33

CO2(aq) + H2O = 2 H+ + CO3--

-16.67

NaCl(aq) = Na+ + Cl-

0.78

SrCl+ = Sr++ + Cl-

0.25

SrCO3(aq) = Sr++ + CO3--

2.87