. 2020 Mar 30;65(5):2310–2324. doi: 10.1021/acs.jced.9b00829

Table 4. Parameters of the Pitzer Model for the CaSO₄–H₂SO₄–H₂O System.

ion interactions	coefficients	A_Pitz	B_Pitz	F_Pitz	reference
Ca²⁺–SO₄^2–	β⁽¹⁾	–3.20249	0	1149.4	model D⁷
Ca²⁺–SO₄^2–	β⁽²⁾	32.0227	–0.27033	0	model D⁷
Ca²⁺–HSO₄^–	β⁽⁰⁾	1.20201	–0.00420415	226.9	set-1, this work
	β⁽¹⁾	–56.3747	0.096100	8930
	C^ϕ	–0.75151556	0.00207479	0
H⁺–SO₄^2–	β⁽⁰⁾			12.04250	Sippola and Taskinen³³
H⁺–SO₄^2–	C^ϕ	0.137684		–30.395
H⁺–HSO₄^–	β⁽⁰⁾	0.24106	–3.5118 × 10^–4	22.0454
H⁺–HSO₄^–	β⁽¹⁾	0.333982		39.296

Table 4. Parameters of the Pitzer Model for the CaSO4–H2SO4–H2O System.