METHOD FOR PRODUCING TIN-DOPED INDIUM OXIDE POWDER AND THE TIN-DOPED INDIUM OXIDE POWDER

摘要

PROBLEM TO BE SOLVED: To provide a method for producing ITO (indium tin oxide) powder the residual chlorine amount of which is made lower than the conventional product and to provide the ITO powder.;SOLUTION: The method for producing tin-doped indium oxide powder includes steps of: washing the coprecipitated hydroxide of indium and tin produced by mixing the acidic solution of indium and tin using tin chloride as a tin raw material with an alkaline solution; washing the produced coprecipitated hydroxide; drying the washed coprecipitated hydroxide; and firing the dried coprecipitated hydroxide. The method includes a step of water-washing, drying and heating the coprecipitated hydroxide, after washing the washed and dried coprecipitated hydroxide with aqueous ammonia of pH=9-12.;COPYRIGHT: (C)2011,JPO&INPIT