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. 2021 May 13;7(5):e06882. doi: 10.1016/j.heliyon.2021.e06882

Table 2.

Initial and final pH and dissolved anionic concentrations in the competition experiments of OCP transformation into apatite.

Experiment pH
OH (mmol/L)
F (mmol/L)
Cl (mmol/L)
Alk (mmol/L)
initial final initial final initial final initial final initial final
No_Comp 7.00 7.08 1 10−4 1.20 10−4 7.37 1.43 0 0 0 0
Cl_Comp 7.00 6.91 1 10−4 8.13 10−5 7.37 1.77 7.37 7.02 0 0
OH_Comp 11.87 7.26 7.37 1.82 10−4 7.37 2.34 0 0 0 0
Alk_Comp 8.80 7.79 6.31 10−3 6.17 10−4 7.37 1.57 0 0 7.37 7.22
Tot_Comp 11.87 7.84 7.37 6.92 10−4 7.37 2.09 7.37 7.07 7.37 7.18

Alk = HCO3 + CO32−.