摘要
本文利用动态法研究了电解质对氢氧化铝镁正电溶胶 (以下简称溶胶 )的聚沉作用 ,发现一价阴离子对溶胶的聚沉效率大小顺序为Br->I->NO-3 >Cl-,与经典的感胶离子序不相同 ;在体系的PH =9.4时高价阴离子对溶胶的聚沉能力大小与叔采—哈德规则不相符 ;阳离子价数越高 ,对正电溶胶的稳定作用越强。
The coagulation of aluminum magnesium hydroxide positive sol with electrolyte solution is studied by dynamic method.The efficiency in causing coagulation for monovalent anions follows the order Br ->I ->NO - 3>Cl -,which didn't correspond to the lyotropic series.The coagulation value of polyanion has a discrepancy with Shulze-Hardy law.The higher the cation valency,the stronger the stabilization of sol.
基金
教育部胶体与界面化学重点实验室资助!课题 [980 6 ]
关键词
电解质
氢氧化铝镁
正电溶胶
聚沉作用
electrolyte
aluminum magnesium hydroxide
positive sol
coagulationX
