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sodium metasilicate anhydrous, also known as Sodium Silicate/Water Glass, is a white free-flowing granular powder used in many cleaners, detergents and soap formulations. It acts as an effective cement binding agent, coagulant in water treatment, dye fixative, binder and corrosion inhibitor. It is also used in metallurgy and automotive applications as well as cleaning carbonated beverage bottles and as an anti-corrosive agent for refractories and boiler compounds.
Typical packaging is 25 kg bags. American Elements can offer other packaging options upon request, including custom and high purity. This product is manufactured to the highest international standards and is available in ACS, Reagent and Research grades as well as Food, Agricultural and Pharmaceutical grades. Please contact us for more information.
In detergent formuations, sodium metasilicate anhydrous is a multifunctional ingredient that shows excellent pH-regulating capacity, efficient detergency, bleach stabilizing and dirt dispersing properties. It is also a good wetting agent, deflocculating and holding inorganic materials in suspension. It also protects metal surfaces from corrosion and is an excellent buffer that prevents large changes in pH.
sodium metasilicate anhydrous is hygroscopic and deliquescent and is insoluble in acids, alcohols and salt solutions. It reacts violently with acid and is corrosive to aluminium and zinc. It produces a fire hazard when mixed with acids and is explosive when in contact with halogens such as hydrogen chloride. It is also irritating to the eyes and skin. sodium metasilicate anhydrous is soluble in water, but does not dissolve in ethanol. It crystallizes from solution as a variety of hydrates, with the most common forms being Sodium Metasilicate Pentahydrate and Sodium Metasilicate Nonahydrate.