制备硅酸凝胶实验条件的探讨

Study of Experimental Conditions for Making Gel of Silicic Acid

对制备硅酸凝胶的实验条件作了分析和探讨，指出溶胶的ｐＨ值，杂质，ＳｉＯ２的浓度，粒子的大小，电解质浓度等都将影响溶胶胶凝的速度。

The experimental condition of making gel of silicic acid is analysed.The factor influencing upon the gelling velocity are studied, such as pH value, impurities, concentrations of SiO 2, particle size and concentrations of electrolyte ,etc.