6834-92-0 Usage
Description
Sodium metasilicate is an inorganic compound with the chemical formula Na2SiO3. It is a white crystalline solid that is soluble in water and has a variety of industrial and household applications.
Uses
Used in Laundry, Dairy, and Metal Cleaning:
Sodium metasilicate is used as a cleaning agent for laundry, dairy, and metal cleaning due to its ability to remove dirt, grease, and stains effectively.
Used in Floor Cleaning:
Sodium metasilicate is used as a floor cleaning agent for its ability to remove dirt and grime from various surfaces.
Used as a Base for Detergent Formulations:
Sodium metasilicate is used as a base for detergent formulations due to its ability to enhance the cleaning efficiency of surfactants.
Used as a Bleaching Aid:
Sodium metasilicate is used as a bleaching aid to whiten fabrics and remove stains.
Used in Deinking Paper:
Sodium metasilicate is used in the deinking process of paper to remove ink and other impurities.
Used in Soap, Detergent, and Bath/Washing Products:
The various hydrates of sodium metasilicate are used in soap, detergent, and bath/washing products as a builder, which enhances or maintains the cleaning efficiency of surfactants by inactivating water hardness.
Used as an Anticorrosion Agent in Boiler-Water Feeds:
Sodium metasilicate is used as an anticorrosion agent in boiler-water feeds to prevent corrosion and scale buildup.
Used as an Antibacterial Pharmaceutical Compound:
Sodium metasilicate is used as an antibacterial pharmaceutical compound containing Sodium Hydrogen Carbonate, which helps in killing bacteria and maintaining hygiene.
Identifying tests
Dissolve 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 Analysis
Take 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.
Toxicity
Corrosive; do not contact with eyes, skin or clothes, and do not inhale its vapor.
GRAS(GMP；FDA，§184.1769a，2000).
Hazard
Toxic by ingestion, protective clothing
required.
Flammability and Explosibility
Notclassified
Safety Profile
Poison 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 Methods
Crystallise it from aqueous 5% NaOH solution. [Schwartz Z Anorg Allgem Chem 126 62 1923.]
Check Digit Verification of cas no
The CAS Registry Mumber 6834-92-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,3 and 4 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 6834-92:
(6*6)+(5*8)+(4*3)+(3*4)+(2*9)+(1*2)=120
120 % 10 = 0
So 6834-92-0 is a valid CAS Registry Number.
InChI:InChI=1/2Na.HO3Si/c;;1-4(2)3/h;;4H/q2*+1;-2
