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. 2020 Aug 28;59(18):13442–13452. doi: 10.1021/acs.inorgchem.0c01821

Table 3. Overview of Distribution Ratios for Extraction of Co(II) or Cu(II) by 0.2 mol L–1 TOMAC in Toluene from 7.9 mmol L–1 CuCl2 or 17.0 mmol L–1 CoCl2 in LiCl or Different Di- and Trivalent Salts and the Salt Cation Standard State Gibbs Free Energy of Hydration (ΔGhyd, exp0)32.

cation DCo(II) at 8.5 mol L–1 Cl DCu(II) at 5.5 mol L–1 Cl ΔGhyd,exp0 (kJ mol–1) ΔGhyd,exp0/z (kJ mol–1)
Li+ (2.1 ± 0.1) · 103 (2.2 ± 0.1) · 102 –475 –475
Ca2+ (4.8 ± 0.3) · 102 (4.0 ± 0.2) · 101 –1505 –753
Mg2+ (5.8 ± 0.3) · 102 (3.8 ± 0.2) · 101 –1830 –915
Al3+ (5.2 ± 0.3) · 102 (4.1 ± 0.2) · 101 –4525 –1508