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THE INFLUENCE OF PRECIPITATION TEMPERATURE ON SILICA MORFOLOGY

The precipitation temperature dependance of the morphology of silica produced via sodium silicate had been investigated in this article. Precipitated silica of highly dispersion degree was produced using two stage neutralization of sodium silicate solution. The influence of temperature on silica properties has been established on the basis of nitrogen gas absorption, dibutyl phthalate (DBP) absorption and SEM analysis. The results show that silica morphology largely depends on this process parameter.