UN METODO DE PREPARAR UNA SOLUCION ACUOSA DE 25 POR CIENTO A 35 POR CIENTO DE PEROXIDO DE HIDROGENO.

摘要

An aqueous hydrogen peroxide solution stable against decomposition by contaminants containing a maximum of 1.2 mg/l tin as a colloidal tin oxide. The tin oxide is maintained in the form of a very fine colloidal sol by means of an organic phosphonic acid. The solution meets the specifications of the semiconductor industry and for use as a reagent chemical.