Quick Search
Sodium metasilicate anhydrous is the chemical substance with formula Na2SiO3, which is the main component of commercial sodium silicate solutions.
Sodium metasilicate anhydrous is an ionic compound consisting of sodium cations Na+ and the polymeric metasilicate anions [–SiO2−3–]n.
Sodium metasilicate anhydrous is a colorless crystalline hygroscopic and deliquescent solid, soluble in water (giving an alkaline solution) but not in alcohols.
CAS Number: 6834-92-0
Molecular Formula: Na2O3Si
Molecular Weight: 122.06
EINECS Number: 229-912-9
Synonyms: Sodium silicate, Waterglass, Sodium siliconate, Sodium sesquisilicate, Sodium silicate glass, Sodium water glass, Britesil, Carsil, Dryseq, Sikalon, Silican, Soluble glass, Agrosil S, Agrosil LR, Portil A, Silica E, Silica K, Silica N, Silica R, Pyramid 1, Pyramid 8, Carsil (silicate), Britesil H 20, Britesil H 24, Dupont 26, Metso 99, Caswell No. 792, as Bond 1001, 49FG, L 96 (salt), DP 222, EPA Pesticide Chemical Code 072603, CHEBI:60720, IJF18F77L3, Sodium silicon oxide (Na₂SiO₃), RefChem:6248, Silicon sodium oxide, Sodium beta-silicate, DTXSID9029647, HK 30, SP 33, 215-687-4, 1344-09-8, Silicic acid, sodium salt, Star, Sodium metasilicate, 6834-92-0, Water glass, Disodium metasilicate, Metso pentabead 20, Metso beads 2048, Sodium silicate (Na₂SiO₃), Silicic acid (H₂SiO₃), disodium salt, Sodium metasilicate, anhydrous, MFCD00003492, Disodium oxosilanediolate, Sodium metasilicate (Na₂SiO₃), Disodium;dioxido(oxo)silane, Silicic acid (H₂SiO₃), disodium salt, pentahydrate (8CI, 9CI), Sodium metasilicate anhydrous, S15025, Crystamet, Orthosil, 052612U92L, Silicic acid (H₂SiO₃), sodium salt (1:2), Simet A, Sodium metasilicate, puriss., Metso beads, drymet, Disodium monosilicate, Metso 20, HK 30 (van), HSDB 753, HSDB 5028, EINECS 215-687-4, EINECS 229-912-9, Disodium oxosilanebis(olate), Silicic acid, disodium salt, UNII-IJF18F77L3, N 38, Q 70, UNII-052612U92L, Sodium meta-silicate, Sodium silicon oxide, Na₂O₃Si, Silicic acid (H₂SiO₃), disodium salt, Epitope ID:158534, EC 215-687-4, EC 229-912-9, SCHEMBL17236, B-W, DTXSID7029669, Sodium metasilicate [MI], Sodium metasilicate [HSDB], Sodium metasilicate [WHO-DD], AKOS024429002, FS34381, Silicic acid (CH₂SiO₃), disodium salt, 84992-49-4, NS00074479, F545156, Q425397, Sodium trisilicate, ≥18% Na (as Na₂O) basis, ≥60% Si (as SiO₂) basis, powder, 229-912-9, SILICA STANDARD;SODIUM SESQUISILICATE;SODIUM SILICATE, META;SODIUM-M-SILICATE;SODIUM METASILICATE;SODIUM METASILICATE N-HYDRATE;WATER GLASS;DISODIUM TRIOXOSILICATE
Sodium metasilicate anhydrous is an inorganic compound with the chemical formula Na₂SiO₃, consisting of sodium, silicon, and oxygen atoms arranged in a silicate structure.
Sodium metasilicate anhydrous belongs to the family of sodium silicates, but the term “anhydrous” indicates that it does not contain water molecules in its crystal lattice, which makes it more concentrated and generally more reactive compared to its hydrated forms such as sodium metasilicate pentahydrate.
Sodium metasilicate anhydrous usually appears as a white, odorless, crystalline powder or granules that are soluble in water, forming an alkaline solution with a relatively high pH.
Because of its strong alkalinity and ability to break down organic matter, it is widely used in industrial cleaning products, detergents, soaps, and degreasers, where it acts as a builder, emulsifier, and dispersing agent.
In addition, Sodium metasilicate anhydrous is applied in textile processing, paper production, water treatment, and metal surface cleaning, since it can remove oils, greases, and other impurities effectively.
Sodium metasilicate anhydrous is a type of silicic acid salt and is classified as an inorganic salt products, and its molecular formula is Na2SiO3•nH2O.
Sodium metasilicate anhydrous is a non-toxic, odorless and harmless white powder or crystalline particle.
Sodium metasilicate anhydrous is soluble in water, but not in alcohols or acids.
Sodium metasilicate anhydrouss aqueous solution is alkaline and is capable of hygroscopy and deliquescence when in contact with air.
Sodium metasilicate anhydrous has purifying, emulsifying, dispersing, moistening, permeating and PH buffering abilities.
Sodium metasilicate anhydrous 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.
Sodium metasilicate anhydrous has strong moistening, emulsifying and saponifying effect on fats.
Sodium metasilicate anhydrous is excellent at eliminating, dispersing and suspending impurities, and it can prevent impurities from recollecting.
Sodium metasilicate anhydrous has strong cl, eansing, 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 anhydrous 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.
Jay Dinesh Chemicals and its group of companies, established in 1951, is into chemical production science its establishment.
Sodium metasilicate anhydrous is also known(synonyms) Sodium meta silicate anhydrous, Sodium meta silicate anhydrous, Sodium Meta Silicate.
Sodium metasilicate anhydrous is a white free-flowing powder with a SiO2/Na2O molar ratio of 1,0 and a solid content of 95,5%.
Sodium metasilicate anhydrous appears as a powder or flaky solid.
Sodium Metasilicate Anhydrous is an inorganic sodium salt with silicate as the counter ion.
Sodium Metasilicate Anhydrous contains a silicate ion.
Sodium Metasilicate Anhydrous is an environmentally safe multifunctional product with excellent pH regulating capacity, effective cleaning ability, effective corrosion prevention, good dispersing and bleach stabilizing properties.
Sodium metasilicate anhydrous is the chemical substance with the formula Na2SiO3, the main component of commercial sodium silicate solutions.
Sodium Metasilicate Anhydrous is an ionic compound composed of sodium cations Na+ and polymeric metasilicate anions [–SiO2−3–]n.
Sodium Metasilicate Anhydrous is a colorless crystalline hygroscopic and soluble solid that is soluble in water (giving an alkaline solution) but insoluble in alcohols.
Melting point: 1089 °C
Density: 2.4 g/cm³
Refractive index: nD25 (glass) 1.520
Solubility: Soluble in cold water; hydrolyzes in hot water; insoluble in ethanol
Form: Powder
Specific Gravity: 2.61
Color: White
pH (aqueous solution): 11 (1 mM); 11.91 (10 mM); 12.62 (100 mM)
Water Solubility: Soluble in cold water, hydrolyzes in hot water, insoluble in acids, alcohols, and salt solutions
Hydrolytic Sensitivity: 0 – forms stable aqueous solutions
Merck Index Number: 14,8642
Stability: Hygroscopic
InChIKey: NTHWMYGWWRZVTN-UHFFFAOYSA-N
In the anhydrous solid, the metasilicate anion is actually polymeric, consisting of corner-shared {SiO4} tetrahedra, and not a discrete SiO32− ion.
In addition to the anhydrous form, there are hydrates with the formula Na2SiO3·nH2O (where n = 5, 6, 8, 9), which contain the discrete, approximately tetrahedral anion SiO2(OH)22− with water of hydration.
For example, the commercially available sodium silicate pentahydrate Na2SiO3·5H2O is formulated as Na2SiO2(OH)2·4H2O, and the nonahydrate Na2SiO3·9H2O is formulated as Na2SiO2(OH)2·8H2O.
The pentahydrate and nonahydrate forms have their own CAS Numbers, 10213-79-3 and 13517-24-3 respectively.
The 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.
Beyond cleaning applications, it also plays an important role as a corrosion inhibitor for metals, a component in ceramics and cements, and a binder in construction materials.
Sodium metasilicate anhydrouss chemical stability, combined with strong alkalinity, makes it suitable for use in adhesives, fireproofing mixtures, and as a raw material in the manufacture of silica-based products.
However, because it is caustic and strongly alkaline, sodium metasilicate anhydrous can cause skin and eye irritation, burns, and respiratory issues if inhaled as dust or handled without proper protective measures.
For this reason, it is usually handled with gloves, eye protection, and appropriate ventilation in industrial and laboratory settings.
Sodium metasilicate anhydrous is also called Sodium Silicate or Water Glass.
Sodium Metasilicate Anhydrous is a white, free flowing, granular powder used in many cleaner, detergent and soap formulations.
Sodium Metasilicate Anhydrous is an effective coagulant in water treatment, paint stabilizer, binder, cement binding agent, anticorrosion and penetrating sealant.
In cleaning formulations, Sodium Metasilicate Anhydrous significantly enhances detergent action and acts as an effective emulsifier and suspending agent.
Sodium Metasilicate Anhydrous is widely used as a builder in cleaners, soaps and detergents as it effectively improves and maintains the cleaning efficiency of surfactants by neutralizing water hardness.
Sodium metasilicate anhydrous has many applications in construction, especially cement and sealants.
Sodium Metasilicate is found in the formulations of anhydrous cements and concretes.
Sodium Metasilicate Anhydrous insoluble in water
Sodium Metasilicate Anhydrous is an effective binder with the benefits of low dust and high reactivity.
Sodium Metasilicate is an important component of wet and dry mixes in anhydrous concrete and provides excellent strength of the resulting structure.
Sodium Metasilicate Anhydrous is also used in oil well cements to prevent solids from separating from the cement matrix.
Sodium Metasilicate Anhydrous can be used as an extender and provides a higher water/cement ratio.
Sodium Metasilicate Anhydrous is an important starting material for silica catalysts and zeolites.
Sodium Metasilicate Anhydrous is also used in boiler water, paint removers, drilling fluids, fire retardants.
Sodium Metasilicate Anhydrous is used as a starting material for zeolites and silica catalysts.
Sodium Metasilicate Anhydrous acts as adhesive and binder, anti-corrosion, penetrating sealant, coagulant in wastewater treatment, stabilizer for hand painting with reactive dye and detergent auxiliaries.
Sodium Metasilicate Anhydrous is also used in boiler compositions, cleaners, bleaches, aluminum paint strippers, and washing soda bottles.
Sodium Metasilicate Anhydrous finds application in cements, drilling fluids, refractory woods, refractories and automobiles.
Also, Sodium Metasilicate Anhydrous is a surfactant, emulsifier, wetting agent, suspending agent in boiler water.
It serves as a dispersant, dispersant and corrosion inhibitor.
Sodium Metasilicate Anhydrous is a strong alkali with strong cleaning, buffering and softening capacity, resisting acidic contamination, emulsifying oils and fats.
Sodium Metasilicate Anhydrous is widely used in Metalworking, Ceramic industries, Detergent, Cleaning Powder and Specialty Chemicals.
Sodium Metasilicate Anhydrous is an inorganic white powder or crystalline granules, non-toxic, tasteless and harmless to the environment.
Sodium Metasilicate Anhydrous easily soluble in water
Sodium metasilicate anhydrous is insoluble in alcohol or acid producing an alkaline solution
Sodium metasilicate anhydrous is very hygroscopic when reacted with CO2 and water in the air.
Uses Of Sodium metasilicate anhydrous:
The various hydrates of Sodium metasilicate anhydrous 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.
Sodium metasilicate anhydrous is an antibacterial pharmaceutical compound containing Sodium Hydrogen Carbonate.
Sodium metasilicate anhydrous is not only a strong cleaning and degreasing agent but also a highly versatile compound that plays a role in many specialized industrial processes.
In industrial and institutional cleaning formulations, it is widely used in dishwashing powders, floor cleaners, and machine-washing detergents, because it provides alkalinity that enhances the performance of surfactants, softens water by precipitating calcium and magnesium ions, and keeps soils dispersed so they do not redeposit onto surfaces.
Its ability to maintain high alkalinity even under harsh conditions makes it especially valuable for cleaning food-processing equipment, boilers, and heavy machinery where oils, fats, and protein residues must be removed efficiently.
In the automotive and metal-finishing industries, Sodium metasilicate anhydrous is incorporated into cleaners and rust removers, where it effectively strips oils, greases, and corrosion products from engine parts and metal surfaces.
Sodium metasilicate anhydrous is also used in metal passivation treatments, where its protective alkaline film reduces oxidation and enhances the longevity of parts exposed to air and moisture.
In some cases, it is blended with phosphates or silicates to provide additional anti-corrosion protection in engine coolants and lubricants.
Sodium metasilicate anhydrous contributes to the strength and stability of building materials.
Sodium metasilicate anhydrous is added to concrete, mortars, and refractory materials as a chemical binder and hardening agent, improving adhesion and resistance to heat and chemicals.
Its inclusion in fireproof coatings and insulation products enhances their resistance to flames and high temperatures, making it useful for protecting steel structures, boilers, and furnaces.
Similarly, in the ceramic industry, it acts as a deflocculant that improves the dispersion of clay particles in water, allowing for smoother processing and higher-quality ceramic products.
Laundry, dairy, and metal cleaning; floor clean- ing; base for detergent formulations; bleaching aid; deinking paper.
Sodium metasilicate anhydrous has a wide range of industrial and commercial uses because of its strong alkalinity, water solubility, and ability to react with oils, fats, and other organic materials.
Sodium metasilicate anhydrous is most commonly used as an ingredient in heavy-duty detergents, laundry powders, and industrial cleaning agents, where it helps to break down grease, oil, and stubborn dirt by emulsifying fats and suspending particulate matter in water, which makes the cleaning process more effective and efficient.
In addition to cleaning applications, Sodium metasilicate anhydrous is also employed in the pulp and paper industry, where it assists in the bleaching and de-inking of recycled paper, thereby improving the quality and brightness of the final product.
The textile industry uses sodium metasilicate anhydrous for scouring and bleaching fabrics, since its strong alkalinity helps to remove natural oils, waxes, and other impurities from fibers, preparing them for dyeing and finishing.
Another important use is in water treatment systems, where it functions as a corrosion inhibitor that protects metal pipes and equipment by forming a thin protective layer on the surface, thus preventing rust and extending the lifespan of the system.
Sodium metasilicate anhydrous is also valuable in the ceramic and construction industries, as it acts as a binding agent, adhesive, and hardening component in cements, refractories, and fireproofing materials, which improves the durability and thermal resistance of these products.
Furthermore, sodium metasilicate anhydrous is used in the manufacture of silica gel, catalysts, and other silica-based products, where it serves as a starting material or intermediate compound.
Sodium metasilicate anhydrous can also be found in adhesives, sealants, and coatings, where its chemical properties help to strengthen bonds and enhance resistance to environmental conditions.
In agriculture, it has been explored as a soil amendment and fertilizer additive, as soluble silicates may provide beneficial silicon to plants, which can improve growth and resistance to certain stresses.
Sodium metasilicate anhydrous 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.
Crafts - forms "stalagmites" by reacting with and precipitating metal ions also used as a glue called "soluble glass".
Safety Profile Of Sodium metasilicate anhydrous:
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.
Sodium metasilicate anhydrous is classified as a corrosive and strongly alkaline substance, which means that it can cause serious harm to human health and the environment if it is not handled properly.
Because of its high alkalinity, direct contact with the solid powder or its aqueous solutions can lead to severe skin and eye irritation, chemical burns, and permanent tissue damage; even short exposure to moist skin can result in redness, blistering, and deep ulceration if it is not washed away promptly.
Contact with the eyes is especially dangerous, since it can cause intense pain, swelling, corneal injury, and in extreme cases, irreversible blindness if medical treatment is delayed.
Inhalation of dust particles or aerosols of sodium metasilicate anhydrous can also present significant respiratory hazards.
When the fine powder is dispersed into the air and breathed in, it may irritate the mucous membranes of the nose, throat, and lungs, leading to coughing, shortness of breath, and chest tightness; in severe or prolonged exposure, it can contribute to inflammation of the respiratory tract and may cause long-term lung damage.
Accidental ingestion of the compound is also highly hazardous, since it can burn the lining of the mouth, esophagus, and stomach, resulting in abdominal pain, vomiting, diarrhea, and in some cases, life-threatening perforation of the gastrointestinal tract.
