SODIUM SILICATE

Sodium silicates are colorless glassy or crystalline solids, liquid or white powders. Except for the most silicon-rich ones, they are readily soluble in water, producing alkaline solutions.

Sodium silicates are stable in neutral and alkaline solutions. In acidic solutions, the silicate ions react with hydrogen ions to form silicic acids, which tend to decompose into hydrated silicon dioxide gel. Heated to drive off the water, the result is a hard-translucent substance called silica gel, widely used as a desiccant. It can withstand temperatures up to 1100 °C.

Applications :

  • Adhesive
  • Timber treatment
  • Drilling fluids
  • Concrete and general masonry treatment
  • Detergent auxiliaries
  • Water treatment
  • Refractory use
  • Sand casting
  • Dye auxiliary
  • Passive fire protection
  • Foundries
  • Steel manufacturing
  • Automotive repair
  • Safe construction
  • Sealing of leaking water-containing structures
  • Mining
  • Paper mills

Sodium Silicate Solid/Glass

PARTICULAR Na2O SiO2 TOTAL SOLIDS
1:2.00 32.50 – 33.00% 66.50 – 67.00% > 99.0%
1:2.20 30.50 – 31.50% 67.50 – 68.00% > 99.0%
1:3.20 23.50 – 24.50% 75.50 – 76.50% > 99.0%
1:3.30 22.50 -23.0% 76.10 – 77.0% > 99.0%

Sodium Silicate Liquid/Solution

PARTICULAR Na2O SiO2 TOTAL SOLIDS
1:2.00-1:3.30 9.82 – 17.10% 28.77 – 37.21% >40.0-67.0%