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Postion:Product Catalog >Inorganic chemistry>Inorganic salts>Silicide and silicates>Sodium metasilicate
Sodium metasilicate
  • Sodium metasilicate
  • Sodium metasilicate
  • Sodium metasilicate
  • Sodium metasilicate
  • Sodium metasilicate

Sodium metasilicate NEW

Price Get Latest Price
Package 25KG
Min. Order: 1KG
Supply Ability: 50000KG/month
Update Time: 2023-09-13

Product Details

Product Name: Sodium metasilicate CAS No.: 6834-92-0
EC-No.: 229-912-9 Min. Order: 1KG
Purity: 99% Supply Ability: 50000KG/month
Release date: 2023/09/13

CAS:6834-92-0
MF:Na2O3Si
MW:122.06
EINECS:229-912-9
Product Categories:metal silicate;Inorganic Salts;Inorganics;Synthetic Reagents
Mol File:6834-92-0.mol
Article illustration

Sodium metasilicate Chemical Properties
Melting point 1089°C
density 2.4
refractive index nD25 (glass) 1.520
form powder
color White
Specific Gravity2.61
PH11(1 mM solution);11.91(10 mM solution);12.62(100 mM solution)
Water Solubility Soluble in cold water. Hydrolyzes in hot water. Insoluble in acids, alcohol and salt solutions.
Hydrolytic Sensitivity0: forms stable aqueous solutions
Merck 14,8642
Stability:hygroscopic
InChIKeyNTHWMYGWWRZVTN-UHFFFAOYSA-N
CAS DataBase Reference6834-92-0(CAS DataBase Reference)
NIST Chemistry ReferenceSodium silicate(6834-92-0)
EPA Substance Registry SystemSodium metasilicate (6834-92-0)
Sodium metasilicate Usage And Synthesis
OverviewSodium metasilicate is a type of silicic acid salt and is classified as an inorganic salt products, and its molecular formula is Na2SiO3?nH2O. It is a non-toxic, odorless and harmless white powder or crystalline particle. It is soluble in water, but not in alcohols or acids. Its aqueous solution is alkaline and is capable of hygroscopy and deliquescence when in contact with air. It has purifying, emulsifying, dispersing, moistening, permeating and PH buffering abilities. Sodium metasilicate is a low molecular weight crystal that results from the heat reaction between foaming alkaline and caustic soda water. Products include anhydrous, pentahydrate and nonahydrate compounds.
Among inorganic electrolytes, sodium metasilicate’s active alkalinity and PH buffering index is the highest. It has strong moistening, emulsifying and saponifying effect on fats. It is excellent at eliminating, dispersing and suspending impurities, and it can prevent impurities from recollecting. It has strong cleansing, buffering and neutralizing abilities, can emulsify fats and oils, is an anti-flocculant for inorganic matter, protects metals from erosion, can replace sodium tripolyphosphate in producing detergents and metal cleansing agents, thus reducing the environmental pollution of sodium tripolyphosphate.
Sodium metasilicate is widely used in laundry detergent, ceramics, plating, textiles, printing, papermaking, concrete, cement, fireproof materials, oils, leather processing, and many other industrial fields. Currently, the industries that use it the most are: ceramics, industrial cleaning, laundry detergent, concrete, printing, papermaking, cement, oil mining, etc.
Identifying testsDissolve a 200mg sample in 10ml water and dispense a drop of this liquid onto a color palette. Add 1 drop of 4mol/L sodium hydroxide and one drop of a solution of 0.5g of ammonium molybdate in 10ml water. Then add 3ml sulfuric acid, and it should turn dark yellow to indicate the presence of silicate. Dip a nichrome wire into the test solution of experiment 1 and place it in a flame; it should turn bright yellow to indicate the presence of sodium.
Content AnalysisTake a 1g sample of silica, place it in a beaker, use 5ml hydrochloric acid to acidify it, and evaporate on a steam bath until dry. Then add another 5ml hydrochloric acid and repeat the steps once. Mix the remainder with 1ml hydrochloric acid and 2ml water, hydrolyze into a soluble salt on the steam bath, and strain through a quantitative analysis filter paper. After rinsing with hot water, move to a platinum crucible and dry for 1h at 105℃, and use a lower temperature to carbonize. Then burn at 1000℃ until it maintains a constant weight. Use a few drops of water to moisten the remainder, and then add 15ml hydrofluoric acid and 5 drops of 1:3 sulfuric acid. After removing the acid on a hot plate, burn at 1000℃ until it maintains a constant weight.
ToxicityCorrosive; do not contact with eyes, skin or clothes, and do not inhale its vapor.
GRAS(GMP;FDA,§184.1769a,2000).
Chemical PropertiesWhite, granular powder. Soluble in water; p H of 1% solution 12.7. Noncombustible.
Chemical PropertiesThe metasilicates are highly water soluble, but insoluble in alcohol, acid, and salt solutions. Solutions of sodium metasilicate, when heated or acidified, are hydrolyzed to free sodium ions and silicic acid. In moist air, they are corrosive to metals, including zinc, aluminum, tin, and lead, forming hydrogen gas. They are all strong bases reacting violently with acid.
UsesThe various hydrates of sodium metasilicate are used in soap, detergent, and bath/washing products. They also have a major use as a builder (a material that enhances or maintains the cleaning efficiency of the surfactant, principally by inactivating water hardness) in soaps and detergents. They are also used as an anticorrosion agent in boiler-water feeds.
UsesSodium Metasilicate is an antibacterial pharmaceutical compound containing Sodium Hydrogen Carbonate.
UsesLaundry, dairy, and metal cleaning; floor clean- ing; base for detergent formulations; bleaching aid; deinking paper. Also available as the pentahydrate whose properties are mp 72.2C, total Na 2 O content 29.3%, total Na 2 O in active form 27.8%, d 1.75 or 55 lb/cu ft.
DefinitionA crystalline silicate.
HazardToxic by ingestion, protective clothing required.
Flammability and ExplosibilityNot classified
Safety ProfilePoison by ingestion and intraperitoneal routes. A caustic material whch is a severe eye, sktn, and mucous membrane irritant. Experimental reproductive effects. Ingestion causes gastrointestinal tract upset. Violent reaction with F2. When heated to decomposition it emits toxic fumes of Na2O. Used in cosmetics. See also SILICATES.
Purification MethodsCrystallise it from aqueous 5% NaOH solution. [Schwartz Z Anorg Allgem Chem 126 62 1923.]

Packing &shipping&Payment

Packing:25kg/drum
Shipping:by sea or by air
Payment:T/T,western union,moneygram
Packaging Details drum
Port:Tianjin
Lead Time :
Quantity(Kilograms)1 - 10000>10000
Est. Time(days)5To be negotiated

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Article illustrationCompany information
Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in 4'-Methylacetophenone,Levamisole hydrochloride ,N-Methylformamide and other chemical reagents research and development production enterprises. Our business covers more than 30 countries, most of the big customers come from Europe, America and other countries in the world, we can guarantee the quality and price. In recent decades, with the efforts of all employees, we have established many cooperative companies in shandong, henan, guangdong and other places. Our corporate purpose is based on the market, enhance the strength, take the road of scientific and environmental sustainable development, relying on the country. Technology r & d center, increase the investment in r & d, based on the domestic market, expand the international market, manufacturing quality products, sincere service to the society, into a modern, ecological, scientific and technological enterprise world.

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