摘要
本文用两相滴定法研究了1-苯基-3-甲基-4-苯甲酰基-5-吡唑酮(PMBP,简写为HA)与甲基膦酸二(1-甲基庚基)脂(P_(350),简写为B)对Pb^(2+)、Cd_(2+)和Cu^(2+)离子在不同的有机溶剂中的萃取机理.(?)定了萃合物的组成分别为:MA_2(M=Pb^(2+)、Ca^(2+)、Cu^(2+));MA_2·HA(M=Cd^(2+));MA_2·B(M=Pb^(2+)、Cd^(2+))和MA_2·2B(M=Cd^(2+)),同时求得了相应的萃合常数β值.
The chclatc extraction of Pb(Ⅱ), Cd(Ⅱ) and Cu(Ⅱ) with PMBP(HA) in benzene and syncrgistlc extraction of Pb(Ⅱ) and Cu(Ⅱ) with PMBP and P350 (B) in each of eight organic solvents were investigated by using the two-phase titration method. The formulas of the extracted species have been suggested and the extracting equilibrium constants B2im corresponding to the extracted chclatcs MA2(HA)i mB have been evaluated (abbreviated).
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
1991年第3期262-266,共5页
Chinese Journal of Inorganic Chemistry
关键词
铅
镉
铜
PMBP
萃取
P350
extraction, synergisitc extraction, mechanism, lead lon, esd m lon copper lon
