Caustic soda Lye (sodium hydroxide) is a versatile alkali. Its main uses are in the manufacture of pulp and paper, alumina, soap and detergents, petroleum products and chemical production. Other applications include water treatment, food, textiles, metal processing, mining, glass making and others.

Physical Properties:

Appearance:              Colourless Viscous liquid

Specific gravity:         1.52 at 20⁰C

Physical state:            Lye

pH:                               14

Specification:

NaOH:                          47.0 % (Min.)

Na₂CO₃:                       0.2 %  (Max)

NaCl:                            200 ppm (Max)

Iron:                             5 ppm (Max)

Sulphate:                     0.1 % (Max