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Citation: Zhao Rui-Yu, Dong Peng, Liang Wen-Jie. Study of the Hydrolysis Kinetics of Tetraethyl Orthosilicate in the Preparation of Monodisperse Silica System[J]. Acta Physico-Chimica Sinica, ;1995, 11(07): 612-616. doi: 10.3866/PKU.WHXB19950709 shu

Study of the Hydrolysis Kinetics of Tetraethyl Orthosilicate in the Preparation of Monodisperse Silica System

1.
University of Petrolum,Shandong Dongying 257062

Received Date: 29 June 1994
Available Online: 15 July 1995

The hydrolysis of tetraethyl orthosilicate in the preparation of monodisperse silica particles was studied by means of extract-freeze separate-GC analysis. The effect of the parameters on the hydrolysis rate was investigated in the temperature range: 25-45℃; ammonina concentration: 0.5-0.2mol•L-1; water concentration: 6.0-15.0mol•L-1.A kinetics eqution of hydrolysis was obtained by the which could be used under experimental conditions most in use in the preparation of monodisperse particles in ethanol with ammonina as catalyst.
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