. 2019 Apr 9;64(6):2697–2709. doi: 10.1021/acs.jced.9b00112

Table 4. Binary Parameters for Ca²⁺–SO₄^2– Ion Interactions of the Pitzer Model in This Work and Other Authors.

Ca²⁺–SO₄^2–	A_Pitz	B_Pitz	D_Pitz	F_Pitz	ref
β⁽⁰⁾	0	0	0	0	model D, this work (273.15–473.15) K
β⁽¹⁾	–3.20249	0	0	1149.4
β⁽²⁾	32.0227	–0.27033	0	0
C^ϕ	0	0	0	0
β⁽⁰⁾	0.4295755	–0.00077	0	0	Wang et al., 2013²¹ (298.15–368.15) K
β⁽¹⁾	1.045953	0.00538	0	0
β⁽²⁾	–324.959265	0.9031	0	0
C^ϕ	0	0	0	0
β⁽⁰⁾	–0.32521	0.002916	–0.000003872	0	Raju and Atkinson, 1990⁵³ (273.15–573.15) K
β⁽¹⁾	1.219512	0.00124	0.00001809	0
β⁽²⁾	–142.7895661	0.8283	–0.001782	0
C^ϕ	0	0	0	0

Table 4. Binary Parameters for Ca2+–SO42– Ion Interactions of the Pitzer Model in This Work and Other Authors.