... company 2) Sodium Metasilicate Anhydrous(HS:2839110000) 3) Purity:50%min Sodium metasilicate anhydrous is strongly alkaline, having ... metal (zinc, aluminum, etc.). Therefore, sodium metasilicate anhydrous is widely used for the manufacture of a variety of ... maintenance agent, water retention agent, etc.PropertiesSodium metasilicate anhydrous is an inorganic white powder or crystalline granules, non ...