High Quality Sodium Silicate LIquid for Concrtet Admixture and Adhesive Water Glass Cas

product informations:

product informations:

Sodium Silicate: An Overview

Sodium silicate, commonly known as water glass or soluble glass, is an inorganic compound with the chemical formula Na₂·nSiO₂, where n represents the molar ratio of silicon  to alkali oxide 。Its CAS number is 1344-09-8, and it exists in various forms including powder, solid, and liquid solutions. The molecular weight typically ranges from 122 to 284.2 depending on the specific composition and hydration state.

Chemical Properties

Sodium silicate appears as a colorless to slightly colored transparent or translucent viscous liquid, or as white to grayish powder and crystalline solid. It is highly soluble in water, forming alkaline solutions with a pH typically between 11 and 13. The compound exhibits strong adhesive properties, high heat resistance, and good acid resistance, though it has poor resistance to alkalis and water 。The density of sodium silicate solution is approximately 1.39 g/mL at 25°C.

Industrial Applications

Sodium silicate is one of the most versatile industrial chemicals, with applications spanning numerous sectors:

Construction Industry: Used as a binder in cement, waterproofing agents, soil stabilizers, and fast-drying concrete formulations 。It is also employed in repairing brick wall cracks and strengthening soil through chemical grouting.

Detergent and Cleaning Products: An essential ingredient in laundry detergents, soaps, and cleaning agents due to its ability to soften water and suspend dirt particles.

Casting and Foundry: Serves as a binding agent for sand and clay molds in metal casting operations.

Textile Industry: Applied in dyeing, bleaching, and sizing processes to improve fabric quality.

Paper and Pulp: Functions as a filler and processing aid in paper manufacturing.

Agriculture: Used in the production of silicon-based fertilizers to enhance plant growth.

Chemical Manufacturing: A raw material for producing silica gel, silicones, and other silicon-based compounds.

Metallurgy: Employed as a metal corrosion inhibitor and in catalytic cracking processes.

Environmental and Safety Considerations

While generally safe to handle, its alkaline nature requires appropriate protective measures during use. Proper storage at room temperature in sealed containers is recommended to maintain product quality.

Conclusion

With applications extending across nearly every sector of the national economy, sodium silicate remains an indispensable chemical in modern industry. Its unique combination of adhesive strength, thermal stability, and chemical versatility ensures its continued relevance in both traditional and emerging technological applications 。As industries seek more sustainable and efficient materials, sodium silicate continues to evolve through advanced formulations and processing techniques.