Sodium Orthosilicate

Sodium Orthosilicate, also known as tetrasodium orthosilicate or Na4SiO4, is a versatile inorganic compound widely used in industrial applications for its strong alkaline properties and silicate-based functionality.

Appearance:
white particle or powder
CAS No.:
13472-30-5
Molecular Formula:
Na4O4Si
Molecular Weight:
184.04
EINECS:
236-741-3
Solubility:
Soluble in water

Availability:



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Product Description

Product Description

Technical Specifications

ITEMS	SPECIFICATIONS
Na2O, %	≥58.5
SiO2, %	≥27.5
(Na2O+SiO2), %	≥87.0
M.R.	0.45-0.55
Fe, ppm	≤200
Bulk Density, g/cm3	≥1.0
Particle Size, (21-100mesh)%	80
Whiteness	≥80

Packaging and Storage

Net weight 25kgs plastic weaves bag.
Store in a ventilated and dry place.

Key Features and Benefits

Superior Alkalinity:

Provides strong buffering and pH adjustment, ideal for cleaning formulations where high pH is required to break down fats, oils, and proteins.

Corrosion Inhibition:

Acts as a protective agent in metal processing and water systems, preventing rust and scale formation on surfaces like steel and aluminum.

Binding and Adhesive Properties:

Enhances adhesion in ceramics, refractories, and construction materials, improving durability and strength.

Eco-Friendly Profile:

Biodegradable and derived from abundant natural resources, supporting sustainable manufacturing practices.

Versatility Across Industries:

Compatible with a wide range of surfactants and builders, allowing customization in product formulations.

Applications of Sodium Orthosilicate

Sodium Orthosilicate is employed in numerous sectors due to its multifunctional properties:

Detergents and Cleaners:

Used as a builder in laundry detergents, dishwashing powders, and industrial cleaners to enhance soil removal and water softening.

Water Treatment:

Serves as a coagulant aid and corrosion inhibitor in boiler water and cooling systems, reducing silica scaling.

Adhesives and Sealants:

Improves bonding in paper, cardboard, and wood adhesives, as well as in silicate-based cements.

Ceramics and Refractories:

Acts as a fluxing agent to lower melting points and strengthen fired products.

Textile Processing:

Employed in scouring and bleaching processes to remove impurities from fabrics.

Other Uses:

In foundry molds, soil stabilization, and as a precursor for silica gels.

Frequently Asked Questions (FAQs)

Q: What is Sodium Orthosilicate used for?

A: Sodium Orthosilicate is primarily used in detergents for its cleaning power, in water treatment for corrosion control, and in adhesives for binding enhancement. It also finds applications in ceramics, textiles, and soil stabilization.

Q: Is Sodium Orthosilicate the same as Sodium Metasilicate?

A: No, Sodium Orthosilicate (Na4SiO4) has a higher sodium-to-silicon ratio than Sodium Metasilicate (Na2SiO3), making it more alkaline and suitable for specific high-pH applications. While both are silicates, they differ in solubility and reactivity.

Q: How should Sodium Orthosilicate be stored?

A: Store in airtight containers in a dry, ventilated area at temperatures below 30°C. Avoid exposure to humidity to prevent hydrolysis and clumping.

Q: Is Sodium Orthosilicate safe for the environment?

A: Yes, it is biodegradable and does not bioaccumulate. However, due to its high pH, dilute solutions before disposal to minimize impact on aquatic life.