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Sodium Metasilicate Pentahydrate is the chemical substance with formula Na2SiO3, which is the main component of commercial sodium silicate solutions.
Sodium Metasilicate Pentahydrate is an ionic compound consisting of sodium cations Na+ and the polymeric metasilicate anions [–SiO2−3–]n.
Sodium Metasilicate Pentahydrate is a colorless crystalline hygroscopic and deliquescent solid, soluble in water (giving an alkaline solution) but not in alcohols.
CAS: 10213-79-3
MF: H5NaO4Si
MW: 120.11
EINECS: 600-279-4
Synonyms
dorimetakeiso5aq;SODIUM METASILICATE 5H2O;SODIUM METASILICATE PENTAHYDRATE;SODIUM SILICATE, PENTAHYDRATE;SODIUMMETA-SILICATE,PENTAHYDRATE,GRANULAR,PRACTICAL;SILICICACID,DISODIUMSALTS(CRYSTALLINEPENTAHYDRATE);SILICICACID,DISODIUMSALT,PENTAHYDRATE;Sodium metasilicate pentehydrate
Sodium Metasilicate Pentahydrate is formed by the high temperature fusion of sodium carbonate and silicon dioxide.
Sodium Metasilicate Pentahydrate forms highly alkaline solutions when dissolved in water.
Sodium Metasilicate Pentahydrate is commonly used as a component of cleaners such as oven cleaners, dishwasher detergent and laundry detergent.
Sodium Metasilicate Pentahydrate, also known as sodium silicate, is an inorganic compound that exists in the form of colorless, water-soluble crystals.
Sodium Metasilicate Pentahydrate is characterized by its versatility in various applications, including use as an adhesive, sealant, cleaning agent additive, corrosion inhibitor, and as a binder in the manufacture of refractory materials.
Sodium Metasilicate Pentahydrate reacts with water and acids, forming a strong, heat-resistant bond, making it useful in the construction industry and in the production of refractory bricks and cements.
Due to Sodium Metasilicate Pentahydrate's ability to form water-resistant compounds and its resistance to high temperatures, it has found broad applications in various industries.
Sodium Metasilicate Pentahydrate is an alkaline type chemical used in many kinds of cleaners, detergents, including detergents for heavy duty cleaning and scouring, to car wash soap
Sodium Metasilicate Pentahydrate can be used as a corrosion inhibitor, adhesive, and even a sealant.
Sodium Metasilicate Pentahydrate is an excellent source of alkalinity in detergent formuations.
Sodium Metasilicate Pentahydrate's function in most detergent formulations is to clean, cut grease, prevent redepsoition.
Sodium Metasilicate Pentahydrate is a versatile inorganic compound with a wide range of industrial and commercial applications.
Sodium Metasilicate Pentahydrate is a white, crystalline solid that is highly soluble in water, forming a strongly alkaline solution.
Sodium Metasilicate Pentahydrate Chemical Properties
Melting point: 1088°C
Density: 2.61
Refractive index: 1.52
Storage temp.: Store at room temperature
Form: Solid
Color: White
PH: 12,5 (in aqueous solution: 10 g /l , 20 °C)
Odor: odourless
Water Solubility: Soluble in cold water.
Merck: 14,8642
CAS DataBase Reference: 10213-79-3(CAS DataBase Reference)
EPA Substance Registry System: Sodium Metasilicate Pentahydrate (10213-79-3)
Uses
Sodium Metasilicate Pentahydrate is used in method for preparing cement accelerator containing Aluminum Sulfate.
Sodium Metasilicate Pentahydrate can be used as a fireproofing compound; laundry, dairy, metal and floor cleaning products; paper deinking; carbonated beverage bottle cleaning; insecticides, fungicides and antimicrobial compounds; chemical intermediates for silica gel catalysts; additives for soaps and synthetic detergents; bases and bleaching aids for tableware and laundry detergent formulations.
Sodium Metasilicate Pentahydrate can be used:
As a silicate electrolyte in plasma electrolytic oxidation (PEO) coating.
For the synthesis of sintered mullite ceramics (3Al2O3·2SiO2) by the co-precipitation method.
As a source of silica for the synthesis of silica-zirconia composites for the chromatographic applications.
For the synthesis of photo-Fenton catalyst, nontronite, for the degradation of Rhodamine B.
As a starting material for the synthesis of zeolite NaA layers on α-Al2O3 supports.
Sodium Metasilicate Pentahydrate reacts with acids to produce silica gel.
Cements and Binders - dehydrated sodium metasilicate forms cement or binding agent.
Pulp and Par - sizing agent and buffer/stabilizing agent when mixed with hydrogen peroxide.
Soaps and Detergents - as an emulsifying and suspension agent.
Automotive applications - decommissioning of old engines (CARS program), cooling system sealant, exhaust repair.
Egg Preservative - seals eggs increasing shelf life.
Crafts - forms "stalagmites" by reacting with and precipitating metal ions.
Also used as a glue called "soluble glass".
Hair coloring kits.
Preparation and properties
The anhydrous compound can be prepared by fusing silicon dioxide SiO
2 (silica, quartz) with sodium oxide Na
2O in 1:1 molar ratio.
Sodium Metasilicate Pentahydrate crystallizes from solution as various hydrates, such as
pentahydrate Na2SiO3·5H2O (CAS 10213-79-3, EC 229-912-9, PubChem 57652358)
nonahydrate Na2SiO3·9H2O (CAS 13517-24-3, EC 229-912-9, PubChem 57654617)
