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Drying of sodium silicate solutions

1971; Wiley; Volume: 21; Issue: 5 Linguagem: Inglês

10.1002/jctb.5020210502

0375-9210

Leslie Glasser, C. K. Lee,

Aerogels and thermal insulation

Abstract Sodium silicate solutions with a silicon dioxide:sodium monoxide mole ratio of 3.41:1 were dried gently to give amorphous solids. These solids, together with the products obtained by heating them at various temperatures up to ∼ 200°c, were studied by differential thermal analysis, solubility tests and other techniques. The resultant data give some insight into the structural changes which occur in the solid during the drying process.