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有关锑(III)-次氨基三乙酸配合物的极谱研究、其稳定常数及形成机理迄今未见报道.本文用动力可逆波半波电位移动法,测定了锑(III)-次氨基三乙酸配合物的稳定常数及反应自由能等热力学函数. 实验 883型笔录式极谱仪,以Ag-AgCl,4M NaCl为参比电极,浴温255±0.2℃.滴汞电极于440mHg时,在0.1M氯化钾溶液中的汞流量为3.9mg/g,自由滴下时间为2.5s.通氮除氧并加入0.01％聚乙烯醇作为极大抑制剂.自装控时敲击器.pHS-2型酸度计.79-1型伏安分析仪.
There are no reports on the stability constants and formation mechanism of antimony (III) -aminotriacetic acid complex in polarographic studies.In this paper, the reversible wave half-wave potential shift method was used to determine the antimony (III) -aminotriacetic acid The stability constant of the complex and the free energy of reaction, etc. Experiment 883 MTT with Ag-AgCl and 4M NaCl as the reference electrode, the temperature of the bath is 255 ± 0.2 ℃, the drop of mercury electrode at 440mHg, 0.1 M potassium chloride solution of mercury flow 3.9mg / g, free-dripping time of 2.5s. Nitrogen deoxidized and added 0.01% polyvinyl alcohol as a maximal inhibitor. Acidity meter. 79-1 type voltammetry analyzer.