摘要
本文利用动态法研究了 pH和温度对氢氧化铝镁正电溶胶稳定性影响 ,发现溶胶在 pH为 5～ 10的体系中能稳定存在 ,pH高于 10 ,溶胶即发生聚沉 ,pH低于 5,溶胶即发生酸溶作用。溶胶在低于 4 0℃时能稳定存在 ,高于 4
The effect of pH and temperature on stability of aluminium magnesium hydroxide positive sol was studied by dynamic method.It was found that aluminium magnesium hydroxide positive sol was stable in the range of pH 5～10;the coagulation of the sol occurs at pH>10,and the acidic dissolution of the sol occurs at pH<5.The stability of the sol decreased with the increase of the temperature in the system.If the temperature was higher than 40℃,the sol would coagulated.
基金
教育部胶体与界面化学开放研究实验室资助课题 !(980 6 )
