【摘要】 从参数φ′^1/2出发,研究了水合金属氧化物、难溶性酸式盐和杂多酸盐的离子交换容量（IEC）与其组成的关系。对于前两者,IEC值与中心离子的φ′^1/2值(或平均φ′^1/2值)成线性关系。中心离子的价态高、原子量小及强拉电子效应的产生均有利于IEC值的提高。更多还原

【Abstract】 The relations between the Ion Exchange Capacities(IEC_S) of hydrous metal oxides, insoluble acidic salts or heteropolyaeid salts and their chemical compositions have been investigated with a function ■ in this paper. It shows that the higher valents of central cations with smaller atomic weight would be beneficial for IEC.更多还原