Table 1.

Calculated oxalate species in the solution

Total calcium (mmol/L)	1.20	1.20
Ionized calcium (mmol/L)	1.08	1.10
Total magnesium (mmol/L)	1.20	10.00
Ionized magnesium (mmol/L)	1.14	9.58
Total oxalate (× 10−7 mol/L)	20.00	20.00
Ox2− (× 10−7 mol/L)	7.90	3.30
HOx− (× 10−7 mol/L)	0.00	0.00
H2Ox (× 10−7 mol/L)	0.00	0.00
CaOx (× 10−7 mol/L)	2.64	1.01
MgOx (× 10−7 mol/L)	4.09	12.98
NaOx− (× 10−7 mol/L)	4.96	1.97
KOx− (× 10−7 mol/L)	0.18	0.07
Ca2Ox2+ (× 10−7 mol/L)	0.20	0.08
Mg2Ox2+ (× 10−7 mol/L)	0.02	0.59
Net sum of charges of Ox species	−20.50	−7.30