Chemically stable aqueous antimony oxide sol

摘要

This invention provides an aqueous antimony oxide sol composed of Sb6O13, 1 to 100 m mu in particle diameter, dispersed in an aqueous medium or composed of said Sb6O13 treated with a particular quantity of a particular organic silicon compound and regulated to within a prescribed pH range, which has a high concentration and a small quantity of impurities, and moreover has excellent thermal stability and chemical stability.