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Sodium Metasilicate
Molecular formula:Na2SiO3; Na2SiO3·5H2O
Molecular weight:122.1; 189.1504
CAS No.:6834-92-0; 10213-79-3
Property:Anhydrous Property: White powder or uniform beaded, melting point 1089℃, non-toxic, odorless, harmless, strong alkaline, good determing ability, large buffer capacity, soluble in water, have good dispersion and emulsification, insoluble in ethanol, can absorb moisture and carbon dioxide in the air. Can neutralize acidic dirt, make adipose and oil emulsification, have anti-flocculating action to the inorganic matter, have anti-corrosive effect to metal.

Pentahydrate Property: White powder or uniform beaded, melting point 72.2℃, easily dissolve in water and dilute lye, cannot dissolve in alcohol and acid, water solution is alkalinity.
Usage:Anhydrous Usage: Instead of sodium tripolyphosphate to use in synthetic detergent, metal cleaning, clean tableware, public health and food cleaning, industrial cleaning agents, such as meat, dairy processing equipment washing auxiliaries, clay dispersion deflocculation agent, oil emulsifier, paper deinking agent. It is widely used in ceramics, detergents, textiles, printing and dyeing, papermaking, electroplating, coal slurry, concrete, petroleum and other industries.

Pentahydrate Usage: It is mainly used in washing powder, metal cleaning agent, tableware washing and high efficiency auxiliaries. Used for cotton cooking. Used for old paper to remove ink, printing decontamination, vegetable oil recovery. It can also be used as a stabilizer for peroxide bleaching.

Sodium metasilicate can also be added to aluminum alloys and the weak alkaline chemical oxidation liquid, in order to improve the quality of the oxide film layer. Used in Zinc plating electrolyte, in the application, should pay attention to the iron content, otherwise will make the iron impurity in the galvanizing electrolyte be too much, and affect the coating quality.
Packing:Net in 25 KG plastic woven bag.