Different particle size silicas from water glass.
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Data
1996-09-01
Autores
Martines, MAU
Davolos, Marian Rosaly [UNESP]
Jafelicci JĂșnior, Miguel [UNESP]
TĂtulo da Revista
ISSN da Revista
TĂtulo de Volume
Editor
Soc Brasileira Quimica
Resumo
Non-crystalline silica was obtained with different particle sizes. Samples were prepared from soluble sodium silicate (water glass) and sulfuric acid solutions. Dialysis was performed for sodium sulfate elimination. Products were dried in a microwave oven, milled and characterized by X-ray powder diffraction, infrared spectrum and sedigraphic analysis. Products milled for more than 120 minutes showed uniform particle size distribution with average silica particle size of 4.5 mu m.
Descrição
Palavras-chave
silica, soluble sodium silicate, particle size
Como citar
Quimica Nova. SĂŁo Paulo: Soc Brasileira Quimica, v. 19, n. 5, p. 469-472, 1996.