sodium metasilicate sodium metasilicate anhydrous is an inorganic whter powder or cryataline granules. sodium metasilicateName: sodium metasilicate anhydrous is an inorganic whter powder or cryataline granules. Use: it can replace STPP to be used for the manufacture of effective detergents and rust remover for metal ,reducing environmental pollution,preventing corrosion for meal . Checking ...