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Sodium Silicate

Original price was: $ 1.05.Current price is: $ 0.97.

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Sodium Silicate is a water-soluble, viscous alkaline liquid with the general formula Na₂SiO₃ (ratios vary). Commonly referred to as water glass or liquid glass, it appears as a clear to slightly cloudy solution. This 20-litre packaged product is known for its excellent adhesive, binding, and sealing properties. It is widely used in industrial, construction, detergent, and water treatment applications. Sodium silicate forms a glassy film upon drying and resists high temperatures and chemical attack, making it extremely versatile across many industries.

Description

Sodium Silicate

Primary Uses 

  1. Construction & Civil Engineering
  • Concrete Hardening: Penetrates and densifies concrete surfaces to increase durability.
  • Soil Stabilization: Used in grouting and ground improvement for tunneling and foundation works.
  • Fireproofing Material: Binds with mineral wool and vermiculite for fire-resistant coatings.
  • Cement Additive: Enhances chemical resistance and bonding properties.
  1. Detergents & Cleaners
  • Laundry Detergents: Acts as a builder to soften water and enhance cleaning power.
  • Dishwashing Liquids: Prevents corrosion of metal surfaces in alkaline solutions.
  • Industrial Cleaners: Degreases, emulsifies, and disperses oils and fats from surfaces.
  • Metal Surface Cleaning: Removes scale, rust, and organic residues from machinery and equipment.
  1. Adhesives & Binders
  • Corrugated Board Adhesives: Binds paper layers in cardboard production.
  • Foundry Sand Binder: Used in the preparation of sand molds and cores.
  • Refractory Cement Binder: Binds high-temperature materials in kiln and furnace applications.
  1. Water Treatment
  • Boiler Water Treatment: Prevents corrosion and scale formation in industrial boilers.
  • Wastewater Treatment: Clarifies water by coagulating suspended solids.
  • pH Adjustment: Alkalizes acidic waste streams.
  1. Textile & Pulp Industry
  • Bleaching Stabilizer: Stabilizes hydrogen peroxide during pulp and fabric bleaching.
  • Sizing Agent: Improves the stiffness and strength of paper and textiles.
  • De-inking Agent: Helps in recycling printed paper by loosening ink from fibers.
  1. Automotive & Engineering
  • Radiator Sealant: Seals minor leaks in vehicle cooling systems.
  • Exhaust Repair Compounds: Used in high-temperature repair pastes.

Secondary Uses

  1. Ceramics & Pottery
  • Deflocculant: Reduces viscosity of clay slurries in slip casting.
  • Glaze Suspension Agent: Improves dispersion and stability of ceramic glazes.
  1. Agriculture
  • Silicon Supplement: Used experimentally to boost plant resistance to stress.
  • Pesticide Carrier: Acts as an adjuvant in certain agrochemical formulations.
  1. Mining & Metallurgy
  • Ore Flotation Agent: Controls pH and acts as a dispersant in ore processing.
  • Refractory Coating Binder: Used in high-temperature metal processing equipment.
  1. Fire Protection
  • Intumescent Coatings: Expands when exposed to heat, providing fire resistance.
  • Passive Fire Barriers: Used in wall and ceiling coatings for fire compartmentalization.
  1. Household Products
  • Laundry Bluing Base: Occasionally used as a component in traditional laundry preparations.
  • Toilet Bowl Cleaners: Found in strong alkaline cleaners for scale removal.
  1. Arts & Crafts
  • Sculpting and Mold Making: Used in creating solidifying molds for metal casting or plaster work.
  • Paper Mâché Hardener: Improves rigidity and water resistance of paper-based structures.
  1. Laboratory & Research
  • Silica Gel Precursor: Used in the preparation of desiccants and chromatography media.
  • Chemical Experiments: Demonstrates chemical garden or crystal growth in educational settings.
KEY PRODUCT FEATURES

1. Basic Identification Attributes

  • Chemical Name (IUPAC): Disodium metasilicate (common type)
  • Common/Trade Name: Sodium Silicate, Water Glass, Liquid Glass
  • CAS Number: 1344-09-8 (general form)
  • HS Code: 2839.11.00
  • Synonyms: Sodium silicate solution, Sodium water glass, Soluble glass

2. Physical & Chemical Properties

  • Physical State: Viscous liquid solution
  • Color & Odor: Clear to hazy; odorless
  • Solubility: Fully miscible in water
  • Specific Gravity: 1.35–1.55 (varies with ratio and solids content)
  • pH (1% solution): ~11.3–12.5
  • Solids Content: 38–45% by weight (for 45% grade)
  • SiO₂/Na₂O Ratio: Commonly 2.0–3.3 depending on formulation

3. Safety & Hazard Attributes

  • GHS Classification: Skin Irritant (Category 2), Eye Irritant (Category 2A)
  • Toxicity: LD₅₀ (oral, rat) ~1150 mg/kg
  • Exposure Limits: No established limits; handle with general ventilation
  • Corrosivity: Alkaline—may damage skin, eyes, and mucous membranes

4. Storage & Handling Attributes

  • Storage Conditions: Store in sealed containers; avoid freezing or extreme heat
  • Container Type: 20-litre HDPE jerry cans, drums, or IBCs
  • Shelf Life: 12–24 months under proper conditions
  • Handling Precautions: Avoid contact with skin and eyes; do not mix with acids

5. Regulatory & Compliance Attributes

  • REACH Registered
  • FDA 21 CFR (Certain Grades) – Permitted as a boiler additive in food processing (indirect use)
  • RoHS & SVHC Compliant
  • TSCA Listed – USA
  • Not classified as hazardous for transport (non-flammable liquid)

6. Environmental & Health Impact

  • Biodegradability: Inorganic; not biodegradable but dilutes and neutralizes naturally
  • Ecotoxicity: Moderately harmful to aquatic life in concentrated form
  • Bioaccumulation: None expected
  • Aquatic Impact: High pH may be harmful to fish and plant life if not neutralized
SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

  • PPE Required: Alkaline-resistant gloves, goggles, protective clothing
  • Handling Guidelines: Avoid breathing mist; use local ventilation if spraying
  • Storage Measures: Keep container tightly sealed and upright

First Aid Measures

  • Inhalation: Move to fresh air; seek medical attention if irritation occurs
  • Skin Contact: Wash thoroughly with water; remove contaminated clothing
  • Eye Contact: Flush with water for at least 15 minutes; seek immediate medical help
  • Ingestion: Rinse mouth; do not induce vomiting; seek medical attention

Firefighting Measures

  • Fire Hazards: Non-flammable; will not support combustion
  • Extinguishing Media: Use media suitable for surrounding fire (water, CO₂, dry chemical)
  • Hazardous Combustion Products: None known; stable under normal fire conditions