近年来有机膦化学有了很大的发展,有机多膦酸是其中的一类。它是含多个配位基团,能与多种金属离子络合的多价螯合剂。过去常用的多价螯合剂是氨羧络合剂(如EDTA等),但它只能在弱酸弱碱范围内适用。随着科学技术的发展,希望有能在强酸强碱条件下也能生成络合物,而且工艺和生理性能又优越的新型 In recent years, organic phosphine chemistry has been greatly developed, organic polyphosphonic acid is one of them. It is a sequestration agent with multiple coordination groups that can complex with many metal ions. In the past commonly used sequestrants ammonia carboxylamine complexing agent (such as EDTA, etc.), but it can only be used in the range of weak acid and alkali. With the development of science and technology, it is hoped that a new type of complex that can generate complex under strong acid and alkali conditions and superior in process and physiological properties