. 2021 Jan 24;7(1):e06064. doi: 10.1016/j.heliyon.2021.e06064

Table 3.

Species distribution in the supersaturated solution (SI = 1.47) for gypsum formation obtained by PhreeqC (error = 7%).

Species	Molality	Activity	Log	Log	Log	mole V
Species	Molality	Activity	Molality	Activity	Gamma	cm³/mol
OH⁻	5.148e-06	3.146e-06	-5.288	-5.502	-0.214	-2.66
H⁺	4.185e-09	3.162e-09	-8.378	-8.500	-0.122	0.00
H₂O	5.551e+01	9.831e-01	1.744	-0.007	0.000	18.07
HCO₃⁻	1.816e-05	1.229e-05	-4.741	-4.910	-0.169	26.92
CaCO₃	6.269e-06	7.291e-06	-5.203	-5.137	0.066	-14.60
CaHCO₃⁺	5.385e-06	3.734e-06	-5.269	-5.428	-0.159	9.96
NaHCO₃	1.747e-06	2.032e-06	-5.758	-5.692	0.066	1.80
NaCO₃⁻	1.340e-06	9.979e-07	-5.873	-6.001	-0.128	2.78
CO₃²⁻	8.685e-07	1.823e-07	-6.061	-6.739	-0.678	-2.03
CO₂	7.645e-08	8.891e-08	-7.117	-7.051	0.066	34.43
(CO₂)₂	1.248e-16	1.451e-16	-15.904	-15.838	0.066	68.87
Ca²⁺	9.495e-02	2.381e-02	-1.023	-1.623	-0.601	-16.71
CaSO₄	8.362e-03	9.725e-03	-2.078	-2.012	0.066	7.50
CaCO₃	6.269e-06	7.291e-06	-5.203	-5.137	0.066	-14.60
CaHCO₃⁺	5.385e-06	3.734e-06	-5.269	-5.428	-0.159	9.96
CaOH+	1.649e-06	1.228e-06	-5.783	-5.911	-0.128	(0)
CaHSO₄⁺	2.714e-10	2.021e-10	-9.566	-9.694	-0.128	(0)
Cl⁻	4.663e-01	2.949e-01	-0.331	-0.530	-0.199	18.78
Na⁺	4.098e-01	2.940e-01	-0.387	-0.532	-0.144	-0.52
NaSO₄⁻	5.000e-03	3.384e-03	-2.301	-2.471	-0.169	21.09
NaHCO₃	1.747e-06	2.032e-06	-5.758	-5.692	0.066	1.80
NaCO₃⁻	1.340e-06	9.979e-07	-5.873	-6.001	-0.128	2.78
NaOH	7.954e-17	9.249e-17	-16.099	-16.034	0.066	(0)
SO₄²⁻	1.248e-02	2.297e-03	-1.904	-2.639	-0.735	17.45
CaSO₄	8.362e-03	9.725e-03	-2.078	-2.012	0.066	7.50
NaSO₄⁻	5.000e-03	3.384e-03	-2.301	-2.471	-0.169	21.09
HSO₄⁻	9.481e-10	7.063e-10	-9.023	-9.151	-0.128	40.95
CaHSO₄⁺	2.714e-10	2.021e-10	-9.566	-9.694	-0.128	(0)