COPROUS OXIDE PARTICLE, AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a coprous oxide particle excellent in oxidation resistance and storage stability.SOLUTION: The coprous oxide particle is surface-treated with at least one of 6-20C fatty acids and organic amines. The ratio D/Dc of an average particle diameter D to a crystallite diameter Dc as observed by a scanning electron microscope is suitably 1 to 10. The copper suboxide particle is formed by mixing a reaction liquid containing a water-soluble copper compound, water and an alcohol with a reducing agent composed of hydrazine or a derivative thereof; then, at least one of the 6-20C fatty acids and the organic amines is added to the reaction liquid to adhere the fatty acid or the organic amine on the surface of the copper suboxide particle to thereby suitably manufacture the surface-treated copper suboxide particle.