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研究了钴(Ⅱ)、镁在高氯酸钠和二——(2—乙基已基)磷酸的苯溶液之间的分配。钴(Ⅱ)和镁的萃取络合物分别是CoR_2·2RH,MgR_2·2RH。萃取平衡如下: Co_(α)~(2+)+2R_2H_2(ο)K_(12)~(Co) CoR_2·2RH_(ο)+2H_(α)~+ Mg_(α)~(2+)+2R_2H_2(ο)K_(12)~(Mg)MgR_2·2RH_(ο)+2H_(α)~+ 式中K_(12)~(Co)=~(-5,53),K_(12)~(Mg)=10~(-5’46) 同时考察了高氯酸钠浓度对钴(Ⅱ)、镁萃取的影响。
The distribution of cobalt (II), magnesium between benzene solutions of sodium perchlorate and di- (2-ethylhexyl) phosphoric acid was studied. Cobalt (Ⅱ) and magnesium extraction complexes are respectively CoR_2 · 2RH and MgR_2 · 2RH. The extraction balance is as follows: Co_ (α) ~ (2 +) + 2R_2H_2 (ο) K_ (12) ~ (Co) CoR_2 · 2RH_ (o) + 2H_ (α) ~ + Mg_ (α) ~ (2 +) + 2R_2H_2 (ο) K_ (12) ~ (Mg) MgR_2 · 2RH_ (ο) + 2H_ (α) ~ + K_ (12) ~ (Co) = ~ (-5,53), K_ (12) ~ ) = 10 ~ (-5’46) The effects of sodium perchlorate concentration on cobalt (Ⅱ) and magnesium extraction were also investigated.