Thermodynamic Modeling of Surface Tension of Aqueous Electrolyte Solution by Competitive Adsorption Model

Table 2

The absolute average deviation percent (AAD%) in prediction of surface tension using the competitive adsorption model for binary systems. Experimental data are from [10].

System	(°C)	Molality		AAD%
AgNO3	100	1.03–13.16	10	3.81
BaCl2	10–80	0.01–5.96	51	1.10
CaCl2	10–100	0.1–7.37	122	1.38
CsCl	20–30	0.06–8.88	28	0.52
CuSO4	10–80	0.33–1.11	21	2.12
HCl	25–90	0.3–3	18	3.82
HClO4	15–50	0.51–25.92	23	2.56
HNO3	30–80	1.55–46.86	66	3.71
KBr	10–90	0.44–5.6	40	1.15
KC2H3O2	0–80	0.5–23.78	36	4.82
KCl	25–80	0.71–5.16	56	1.03
K3Fe(CN)6	12.35–20.8	0.29–0.62	4	0.76
KI	20–60	0.01–0.12	55	4.45
KNO3	18–100	0.1–2.63	27	1.28
KOH	30–95	4.77–13.28	22	4.39
LiBr	10–90	1.28–17.27	48	1.52
LiCl	10–90	1.19–15.73	79	1.97
MgCl2	10–70	0.55–3.5	23	2.90
NH4Cl	19–60	1.02–7.21	39	1.01
NH4NO3	40–95	0.61–29.43	29	1.21
(NH4)2SO4	18–95	0.7–5.61	33	2.07
NaBr	10–90	0.0007–6.48	58	3.14
NaC2H3O2	0–25	0.50	6	0.94
NaC4H7O2	0–50	0.50	10	1.63
NaCl	10–200	0.71–9.42	81	1.73
NaI	20–50	0.33–8.81	32	0.89
NaNO3	18–100	1.02–11.77	42	1.59
NaOH	20–70	0.49–6.25	26	1.30
Na2SO4	10–193.4	0.2–1.24	62	2.87
RbCl	20–30	0.11–6.93	22	0.59
SrCl2	10–25	0.48–1.92	7	1.24
UO2SO4	20–75	0.18–2.34	48	0.81
Zn(NO3)2	21	2.62	1	1.10
Overall			1215	1.98