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P-507(2—乙基已基膦酸单2—乙基已基酯的简称)作为镍、钴、稀土分离萃取剂,在分析化学中已有应用.它与金属阳离子萃取率与pH的关系如图1.由图1可知,控制适当的pH值可使某一阳离子达到分离的目的.
P-507 (abbreviation of 2-ethylhexyl 2-ethylhexylphosphonate) has been used in analytical chemistry as a nickel, cobalt and rare earth separation and extraction agent, and has been used in combination with metal cation extraction rate and pH The relationship shown in Figure 1. From Figure 1 we can see that the appropriate control of the pH value of a cation can achieve the purpose of separation.