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用１０ 种无机盐对酸性和碱性硅酸溶胶进行处理，研究了无机盐对胶凝时间的影响。研究结果表明，一般情况下无机盐使胶凝时间缩短，但ＦｅＣｌ３ 使酸性硅酸凝胶形成时间延长。本文还分析了正、负离子的作用机理，排列了各离子影响力的大小顺序。
The effects of inorganic salts on gelation time were studied by treating 10 kinds of inorganic salts with acidic and alkaline silicic acid sols. The results show that, in general, inorganic salts to shorten the gel time, but the acidic silicic acid gel FeCl3 extend the formation time. This paper also analyzes the positive and negative ion mechanism of action, arranged in order of the size of the ionic influence.