The Reaction of Aluminum Sulfate and Calcium Carbonate. I. Preparation of Basic Aluminum Sulfate Sol and its Hydrolysis

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 1949 English Publisher:Oxford University Press (OUP)Journal:Bulletin of the Chemical Society of Japan, volume 22, pages 182-185 (issn: 0009-2673, eissn: 1348-0634,

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Authors: Tsutomu Kuwata; Tadahisa Nakazawa;

doi: 10.1246/bcsj.22.182

The Reaction of Aluminum Sulfate and Calcium Carbonate. I. Preparation of Basic Aluminum Sulfate Sol and its Hydrolysis

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Abstract 1. By the moderate reaction of calcium carbonate and the concentrated solution of aluminum sulfate, highly basic aluminum sulfate sol is easily obtained. 2. Some kinds of the basic aluminum sulfate sol become gel on heating and the sol-gel transformation is perfectly reversible at the neighbourhood of 40-50°C. 3. On dilution with water, the highly basic aluminum sulfate (SO3/Al2O3=1.1–1.6) hydrolyses and precipitates the insoluble basic aluminum sulfate (SO3/Al2O3=0.5–0.6).

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