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测量了铅(Ⅱ)在苯乙烯膦酸单1—甲基庚基酯(MH(S)PA,(B317)的二甲苯溶液与硝酸钠水溶液间的分配。记录了MH(S)PA和它的铅盐的红外光谱。也研究了同样条件下二—2—乙基已基磷酸(DEHPA)的性质。无论是MH(S)PA还是DEHPA,铅的萃合物都是Pb(HA_2)_2(H_2A_2表示萃取剂的二聚分子)。铅盐的磷酰氧基的红外光潜特征振动频率比萃取剂的低,说明有磷酰氧原子对铅原子的配位。
The distribution of lead (II) between xylene solutions of styrene-1-methylheptyl styrene phosphonate (MH (S) PA, (B317)) and aqueous sodium nitrate was measured. Of the lead salt of the infrared spectroscopy also studied the same conditions under the conditions of di-2-ethylhexyl phosphate (DEHPA), whether it is MH (S) PA or DEHPA, the lead is Pb (HA_2) _2 (H_2A_2 indicates the dimeric molecule of the extractant.) The infrared photo-latent energy of lead phosphonium salt of the lead salt is lower than that of the extractant, indicating the coordination of phosphorus oxygens to lead atoms.