Chinese Journal of Applied Chemistry ›› 1998, Vol. 0 ›› Issue (3): 79-81.

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Preparation of Ultrafine Silica Particles

Li Zhongjun1, Liu Changrang1, Wang Xueqing2, Zhao Qinsheng3   

  1. 1. Chemical and Engineering College, Zhengzhou University, Zhengzhou 450052;
    2. Department of Physics, Zhengzhou University, Zhengzhou 450052;
    3. Central South University of Technology, Changsha
  • Received:1997-09-23 Revised:1998-03-02 Published:1998-06-10 Online:1998-06-10

Abstract: Ultrafine silica particles ranging from 10 to 20 nm were prepared by sol-gel method and n-butanol azeotropic distillation from water glass using ethyl acetate as a latene acid reagent. The gelling process of the water glass in the presence of ethyl acetate was studied.

Key words: ultralfine silica particle, preparation, sol-gel method