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Sodium Metasilicate Anhydrous
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Sodium Metasilicate Anhydrous is a white crystalline solid known for its alkaline properties and high solubility in water. It is widely used in industrial cleaning, detergent formulations, water treatment, and as a corrosion inhibitor. The anhydrous form is preferred where moisture sensitivity is a concern. It acts as a strong alkaline builder, improving the effectiveness of detergents and degreasers. This product is also used in adhesives, cement, and ceramics due to its binding and strengthening properties.
Description
Uses
Primary Uses
- Detergents & Cleaners
- Acts as a builder in powdered detergents and industrial cleaners to boost cleaning efficiency.
- Used in degreasers for heavy-duty cleaning in industrial and automotive applications.
- Water Treatment
- Adjusts pH and softens water by precipitating hardness ions.
- Adhesives & Cement
- Serves as a binder and strengthener in adhesives, cement, and refractory materials.
- Ceramics & Glass
- Used in ceramic glazes and glass production as a flux and binder.
- Pulp & Paper Industry
- Employed in pulping processes to remove lignin and improve fiber quality.
Secondary Uses
- Textile Industry
- Used in textile processing for scouring and bleaching.
- Metal Cleaning & Treatment
- Acts as a corrosion inhibitor and metal surface cleaner.
- Paints & Coatings
- Used as an additive to improve paint adhesion and durability.
PRODUCT KEY FEATURES
Basic Identification Attributes
- Chemical Name (IUPAC): Sodium metasilicate
- Common/Trade Name: Sodium Metasilicate Anhydrous
- CAS Number: 6834-92-0
- HS Code: 2839.31
- Synonyms: Sodium silicate, Water glass (anhydrous)
Physical & Chemical Properties
- Physical State: Solid (crystalline powder)
- Color & Odor: White, odorless
- Solubility: Highly soluble in water, forming alkaline solutions
- pH (1% solution): ~12-13
- Density: Approx. 2.44 g/cm³
Safety & Hazard Attributes
- GHS Classification: Corrosive (causes severe skin burns and eye damage)
- Toxicity: Harmful if swallowed; causes severe irritation
- Exposure Limits: Follow occupational exposure guidelines for alkaline substances
Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area away from acids and moisture
- Container Type: Typically supplied in sealed plastic or paper bags with moisture barrier
- Shelf Life: Stable if stored properly for up to 2 years
- Handling Precautions: Use protective gloves, goggles, and respiratory protection to avoid dust inhalation
Regulatory & Compliance Attributes
- Complies with industrial chemical standards and regulations (e.g., REACH, TSCA)
- Approved for industrial and commercial use with relevant safety certifications
Environmental & Health Impact
- Biodegradability: Inorganic compound, not biodegradable but low bioaccumulation
- Ecotoxicity: Harmful to aquatic life at high concentrations
Safety: Handle with care to prevent environmental release and human exposure
SAFETY HANDLING PRECAUTIONS
Safety Handling Precautions
- PPE Required: Protective gloves, eye protection, face shield, and dust mask or respirator
- Handling Guidelines: Avoid dust generation; use in well-ventilated areas
- Storage Measures: Keep containers tightly closed and stored in a dry environment away from acids
First Aid Measures
- Inhalation: Move to fresh air immediately; seek medical attention if irritation persists
- Skin Contact: Wash thoroughly with water; seek medical advice if burns or irritation occur
- Eye Contact: Rinse eyes immediately with plenty of water for at least 15 minutes; seek urgent medical care
- Ingestion: Do not induce vomiting; rinse mouth and seek immediate medical assistance
Firefighting Measures
- Fire Hazards: Non-flammable but may react with acids to release toxic fumes
- Extinguishing Media: Use water spray, foam, dry chemical, or COâ‚‚ for surrounding fires
- Special Precautions: Wear full protective gear and self-contained breathing apparatus
Hazardous Combustion Products: Silica fumes and sodium oxides under extreme conditions
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