Organosilanolate powders having a low cation to silicon ratio provide superior hydrophobing ability. The powders may be prepared on an industrial scale by hydrolysis of a silane with a basic salt solution, adding an inert organic solvent, and removing gaseous or alcoholic hydrolysis products by evaporation or distillation, precipitating the organosilanolate as a fine powder.
                            具有低阳离子与
硅比率的有机
硅醇粉末具有卓越的疏
水能力。这些粉末可以通过将
硅烷与碱性盐溶液
水解,添加惰性有机溶剂,并通过蒸发或蒸馏去除气体或醇
水解产物,沉淀有机
硅醇为细粉制备成工业规模。