Silica Sol Obtained from Rice Husk Ash

descriptionPublicationkeyboard_double_arrow_right Article 15 Dec 2009Publisher:Lviv Polytechnic National UniversityJournal:Chemistry & Chemical Technology, volume 3, pages 321-326 (issn: 1996-4196, eissn: 1996-4196,

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Authors: Ana Maria de Sousa; Leila Visconte; Claudia Mansur; Cristina Furtado;

doi: 10.23939/chcht03.04.321

Silica Sol Obtained from Rice Husk Ash

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Abstract

Rice husk ash was used to produce sodium silicate with SiO2/Na2O=3. The investigation of NaOH concentration and temperature on the silica conversion showed that NaOH has positive influence. SiO2/Na2O  3 was produced with 0.8 mol/l of NaOH and 403/453 K. These solutions were used to produce silica sol with diameter of 5nm.

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