Sodium silicate 20litres
Original price was: $5,500.00.$5,300.00Current price is: $5,300.00.
Sodium silicate, commonly known as water glass or liquid glass, is a compound containing sodium oxide (Na₂O) and silica (SiO₂). It is typically represented by the formula Na2SiO3text{Na}_2text{SiO}_3, but it can vary, forming a range of compositions depending on the ratio of sodium oxide to silica.
Properties
- Physical State: It is usually found in a glassy, crystalline solid form or as a thick, syrupy liquid.
- Appearance: Colorless to light brown.
- Solubility: Highly soluble in water, forming a viscous solution.
- pH: Alkaline, typically around 11-12.
Production
Sodium silicate is produced by fusing sodium carbonate (soda ash) and silica sand at high temperatures. The general reaction is: Na2CO3+SiO2→Na2SiO3+CO2text{Na}_2text{CO}_3 + text{SiO}_2 rightarrow text{Na}_2text{SiO}_3 + text{CO}_2
Uses of sodium silicate
- Adhesives and Binders:
- Used in making corrugated cardboard and as a paperboard adhesive.
- Acts as a binder in refractory cements.
- Detergents and Soaps:
- A key ingredient in laundry detergents and dishwashing products.
- Helps in removing grease and stains.
- Construction:
- Used as a sealant and hardener for concrete.
- Serves as a fireproofing material for various applications.
- Water Treatment:
- Helps in water softening processes.
- Used to stabilize soil and in the treatment of wastewater.
- Textiles:
- Employed in the processing of textiles to enhance durability and finish.
- Automotive:
- Used in the repair of engine block cracks and in exhaust systems.
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Related products
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Properties
- Molecular Formula: Na₂SO₄
- Molar Mass: 142.04 g/mol
- Appearance: White crystalline solid
- Solubility: Highly soluble in water
- Density: 2.68 g/cm³ (anhydrous), 1.464 g/cm³ (decahydrate)
- Melting Point: 884 °C (anhydrous)
- Boiling Point: Decomposes before boiling (anhydrous)
Types
- Anhydrous Sodium Sulfate: Often referred to as the mineral thenardite.
- Decahydrate Sodium Sulfate: Known as Glauber's salt (Na₂SO₄·10H₂O).
