Manufacturing method null of anti world - pu stannic oxide

摘要

PURPOSE:To obtain an electrically conductive tin oxide powder having excellent dispersibility, by adding an oxidant to a mixture of a stannous salt containing an antiomonic acid salt. and an alkali solution. CONSTITUTION:An antimonic acid salt and stannous salt are dissolved in an acidic water medium and the resultant solution is reacted with an alkali solution and during or after the reaction an oxidant is added into the reaction mixture solution to provide an electrically conductive antiomony-doped tin oxide powder. The resultant product is not hydroxide, but oxide and therefore becomes an electrically conductive powder without baking after drying. Stannous chloride, tin pyrophosphate, tin oxalate, etc., are used as the stannous salt. Antimony trichloride, antimony pentachloride and alkali antimonate are used as the antimonic acid salt. Hydrogen peroxide having reduced coloring (leaving no impurity) is preferred as the oxidant.