Sodium Orthosilicate also known as tetrasodium orthosilicate or sodium tetrasilicate (chemical formula: Na₄SiO₄), is a high-purity inorganic compound available as a white, flaky solid. It serves as a versatile alkaline agent in various industrial applications, offering excellent solubility in water and strong detergent properties.
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
High Alkalinity and Detergency:
Provides superior cleaning power by breaking down oils, greases, and organic residues, ideal for heavy-duty industrial cleaners.
Water Solubility:
Fully dissolves in water to form a clear, alkaline solution, facilitating easy integration into liquid formulations.
Corrosion Inhibition:
Acts as a protective agent in water treatment systems, preventing scale buildup in boilers and pipes.
Versatile Binding Properties:
Enhances adhesion in adhesives, ceramics, and refractory materials, improving durability and strength.
Stability:
Maintains chemical integrity under high temperatures, suitable for demanding industrial environments.
Applications of Sodium Orthosilicate
Sodium Orthosilicate is widely utilized across multiple sectors due to its multifunctional properties:
Cleaning and Detergents:
As a key component in industrial alkaline detergents, degreasers, and laundry boosters for removing stubborn stains and contaminants.
Water Treatment:
In boiler-feed water systems to control pH, prevent corrosion, and inhibit silica scaling.
Adhesives and Binders:
Strengthens formulations in paper, cardboard, and construction adhesives for better cohesion.
Metal Surface Treatment:
Prepares and cleans metal surfaces prior to coating or painting, ensuring optimal adhesion.
Ceramics and Refractories:
Serves as a grinding aid and raw material in ceramic production, enhancing material flow and heat resistance.
Soaps and Personal Care:
Acts as a builder in soap manufacturing to improve lathering and cleaning efficiency.
Safety and Handling Information
Personal Protective Equipment (PPE): Wear protective gloves, clothing, eye protection, and face shields (P280).
First Aid Measures: If swallowed, rinse mouth but do not induce vomiting (P301+P330+P331). For skin contact, remove contaminated clothing and rinse with water. Seek immediate medical attention for exposure.
Storage: Store in a cool, dry place in tightly sealed containers to prevent moisture absorption and dust formation.
Environmental Considerations: Avoid release to the environment; depolymerizes in water to form non-toxic silicon compounds but can raise pH levels.
Frequently Asked Questions (FAQs)
What are the main uses of Sodium Orthosilicate?
It is commonly used as a degreasant in industrial detergents, a corrosion inhibitor in water treatment, a binder in adhesives and refractories, a surface treatment agent for metals, and a grinding aid in ceramics. It also serves as a builder in soaps to enhance cleaning performance.
Is Sodium Orthosilicate safe for skin contact?
No, Sodium Orthosilicate is strongly alkaline and can cause severe skin burns and irritation. It is not recommended for use in personal care products intended for direct skin application. Always use appropriate PPE when handling.
How should Sodium Orthosilicate be stored?
Store in airtight containers in a cool, dry, well-ventilated area away from acids and moisture. Avoid exposure to incompatible materials like strong oxidizers.
What is the difference between Sodium Orthosilicate and other sodium silicates?
Sodium Orthosilicate (Na₄SiO₄) has a higher sodium-to-silica ratio compared to metasilicate (Na₂SiO₃), resulting in stronger alkalinity and specific applications in high-pH environments.
Where can I buy Sodium Orthosilicate?
You can contact us via email [email protected] for an offer or bulk order.