Sodium Disilicate
Sodium Disilicate, commonly supplied in granular or powder form, is an alkaline, water-soluble compound used widely in industrial applications. It functions primarily as a binder, adhesive, and corrosion inhibitor. Its high alkalinity and silicate content make it effective in detergents, water treatment, and cement manufacturing. Sodium Disilicate is valued for its ability to improve strength and durability of materials, as well as its effectiveness in cleaning and stabilizing processes.
Sodium Disilicate
Primary Uses
- Detergents and Cleaning Products
- Acts as a builder and alkalinity source in laundry detergents and industrial cleaners.
- Enhances cleaning efficiency by softening water and breaking down grease and oils.
- Water Treatment
- Used for corrosion inhibition in water systems, protecting metal surfaces such as boilers and cooling towers.
- Helps control pH and prevent scale formation.
- Cement and Construction
- Employed as an additive to improve cement and concrete strength and adhesion.
- Used as a binder in refractory materials and ceramics.
- Adhesives and Binders
- Functions as a binding agent in various industrial processes including paper and textile manufacturing.
Secondary Uses
- Coatings and Paints
- Used as a corrosion inhibitor and adhesion promoter in certain coating formulations.
- Catalyst Carrier
- Sometimes utilized as a carrier or support material in catalyst systems.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Disodium metasilicate (commonly referred to as sodium disilicate)
- Common/Trade Name: Sodium Disilicate
- CAS Number: 1344-09-8
- HS Code: 2839.31
- Synonyms: Water glass, Sodium silicate
2. Physical & Chemical Properties
- Physical State: Granular or powder
- Color & Odor: White to off-white; odorless
- Solubility: Soluble in water
- pH: Strongly alkaline (~11-13 in solution)
- Density: Approx. 2.4 g/cm³
3. Safety & Hazard Attributes
- GHS Classification: Corrosive to skin and eyes
- Toxicity: Moderate irritant; avoid prolonged exposure
- Exposure Limits: Use appropriate industrial hygiene measures
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area, protected from moisture
- Container Type: Supplied in sealed plastic or woven polypropylene bags (25kg)
- Shelf Life: Stable under recommended storage conditions
- Handling Precautions: Use protective gloves and goggles; avoid dust inhalation
- Storage Measures: Keep containers tightly closed and stored in a dry environment
5. Regulatory & Compliance Attributes
- Complies with industrial chemical regulations for alkaline silicates
- Meets standards for use in detergents, water treatment, and construction applications
6. Environmental & Health Impact
- Biodegradability: Inorganic compound; does not biodegrade but is not bioaccumulative
- Ecotoxicity: Can be harmful to aquatic life due to alkalinity; avoid environmental discharge
- Bioaccumulation: Not expected
Safety Handling Precautions
- PPE Required: Acid/alkali resistant gloves, goggles, protective clothing, and dust mask recommended
- Handling Guidelines: Avoid inhalation, ingestion, and skin or eye contact; ensure adequate ventilation
- Storage Measures: Keep containers sealed and separate from acids and incompatible materials
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if respiratory irritation develops
- Skin Contact: Wash with plenty of water and soap; seek medical advice if irritation persists
- Eye Contact: Rinse immediately with plenty of water for at least 15 minutes; seek urgent medical attention
- Ingestion: Rinse mouth; do not induce vomiting; seek immediate medical assistance
Firefighting Measures
- Fire Hazards: Non-flammable
- Extinguishing Media: Use water spray, foam, dry chemical, or CO₂ as appropriate for surrounding fire
- Special Precautions: Wear protective equipment and self-contained breathing apparatus if required
- Hazardous Combustion Products: None known
Related products
Basic Laundry Detergent
Basic Laundry Detergent is a cleaning agent formulated primarily for washing textiles such as clothes, linens, and other fabrics. It typically contains surfactants, builders, enzymes, and other additives that work synergistically to remove dirt, stains, and odors from fabrics. Designed for household and industrial use, laundry detergents help restore fabric cleanliness and freshness while maintaining fiber integrity. Basic laundry detergents can be in powder, liquid, or tablet form, and are formulated to perform in various water hardness conditions and temperatures.
Calcium Chloride
Calcium Chloride is an inorganic salt composed of calcium and chlorine with the chemical formula CaCl₂. It typically appears as a white crystalline solid or granular powder, highly soluble in water and exhibiting strong hygroscopic properties. Calcium Chloride is widely used for its moisture-absorbing ability, de-icing, dust control, and as a firming agent in food processing. It finds extensive applications across industrial, pharmaceutical, agricultural, and food sectors due to its efficacy in modifying physical and chemical properties of products and environments.
Caustic Soda Flakes (Sodium Hydroxide)
Caustic Soda Flakes, also known as Sodium Hydroxide Flakes (NaOH), are a highly alkaline, white, solid substance that is crystalline and flaky in form. Produced by evaporating aqueous sodium hydroxide solutions, these flakes are highly soluble in water and exhibit strong corrosive properties. Caustic Soda Flakes are widely used in a variety of industrial, chemical, and manufacturing processes due to their strong alkalinity, ability to saponify fats, and effectiveness in pH adjustment. Their high purity and ease of handling in flake form make them suitable for use in chemical synthesis, pulp and paper production, water treatment, and detergent manufacturing.
Iodine Crystals
Iodine Crystals are high-purity elemental iodine in solid crystalline form. These dark violet-black crystals have a characteristic pungent odor and sublime easily at room temperature, releasing violet iodine vapors. Iodine is a halogen element widely used for its antiseptic, oxidizing, and chemical reagent properties in pharmaceutical, industrial, and laboratory applications.
Sodium Alumina Silicate
Sodium Alumina Silicate is an inorganic compound consisting of sodium, aluminum, and silicon oxides. It is typically found as a white, amorphous powder with excellent adsorption and ion-exchange properties. Commonly used as a detergent builder, water softener, and desiccant, sodium alumina silicate improves cleaning efficiency, controls water hardness, and aids moisture absorption. Its thermal stability and chemical inertness make it valuable across detergent manufacturing, water treatment, and various industrial processes.
Sodium Hexametaphosphate
Sodium Hexametaphosphate (SHMP) is a high-efficiency sequestrant and dispersing agent widely used across industrial applications. It appears as a white, odorless powder or granule, highly soluble in water, and is valued for its ability to chelate metal ions, soften water, and disperse solids. Its role in preventing scale formation and stabilizing chemical formulations makes it a key ingredient in water treatment, cleaning agents, and textile processing. It is the primary active ingredient in many commercial and industrial water treatment formulations, most notably as the original key component in the Calgon® brand of water softeners and scale inhibitors. While modern "Calgon" products may contain blended formulations, the term has become a common genericized reference for polyphosphate-based scale prevention, rooted in this chemical's function.
Sodium Sulphide
Sodium Sulphide (Na₂S) is a yellow to red-yellow crystalline solid or powder with a characteristic odor of hydrogen sulfide. It is highly soluble in water, forming strongly alkaline solutions. This 25kg packaged product is widely used in the chemical, leather, pulp and paper, and textile industries as a reducing agent, sulfur donor, and in flotation processes. Due to its strong reducing properties and reactivity, it must be handled with care under proper safety measures.
Sodium Thiosulphate Pentahydrate
Sodium Thiosulphate Pentahydrate (Na₂S₂O₃·5H₂O) is a white crystalline solid that is highly soluble in water. It is commonly used as a photographic fixer, reducing agent, and in water treatment processes. This 25kg packaged product contains five molecules of water of crystallization, which makes it more stable and easier to handle in industrial and laboratory applications. It is widely used to dechlorinate water, remove heavy metals, and in analytical chemistry for iodometric titrations.

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