Sodium metasilicate is the chemical material containing formula Na 2SiO 3 and is the main component of industrial silicate sodium solutions. It is an ionic compound consisting of Na+ sodium cations and [–SiO2−3–] polymeric metasilicate anions.
Sodium metasilicate is used in fireproofing mixtures; in laundry, food, milk, rubber, and floor cleaning; in deinking paper; in bottles of carbonated drink; in insecticides, fungicides, and antimicrobial compounds; as a chemical intermediate for catalysts of silica gel; as an ingredient in soaps and synthetic detergents;
Sodium Metasilicate
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Applications
Ingredient in Fireproofing Mixtures
Laundry
Dairy
Metal and Floor Cleaning
Washing Carbonated Drink Bottle
Insecticides
Fungicides & Anti-Microbial Compound
Textile Industries
Additive in Soaps & Synthetic Detergents
Specifications
_________
Sr. No.
Characteristics
Specifications
1
Alkalies as Na2O
28% Min.
2
SIO2
28% MIN
3
Ratio : Na2O: SiO2
1:1+_0.1
4
Appearance
White Powder
5
Free Alkali as Na2O
1% Max.
6
Loss on ignition
44% Max.
7
Matter Insoluble
0.5% Max.
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