Caustic Soda Lye

Caustic Soda is a versatile basic chemical with a wide range of industrial applications. It is highly soluble in water and is practically insoluble in most organic solvents except alcohol. It is available in the form of lye (solution in water).

Applications

  • Digestion of wood and bagasse for manufacture of pulp and paper.
  • Digestion of wood for manufacture of viscose staple fibre, viscose filament yarn and rayon tyre cord.
  • Manufacture of soaps and detergents.
  • Digestion of aluminum ore to make alumina as an intermediate in the production of aluminum.
  • Bleaching & processing of cotton textiles.
  • Regeneration of ion-exchange resins in water treatment plants.

Properties

Specific gravity @ 25°C
1.493
Freezing point
13°C
Boiling point
135.5°C
Odour
Odourless
Hygroscopicity
Hygroscopic and deliquescent
Solubility in water
Highly soluble
Solubility in organic solvents
Soluble in ethanol, methanol, glycerol etc but insoluble in ether and benzene

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