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Caustic Soda (Sodium Hydroxide)




Caustic Soda (Sodium Hydroxide)

Caustic soda is most commonly manufactured by the electrolysis of sodium chloride brine in either a membrane or diaphragm electrolytic cell. Co-products are chlorine and hydrogen.


Caustic soda (NaOH), also known as sodium hydroxide is a strong, clear to hazy, liquid base. Sodium hydroxide is produced (along with chlorine and hydrogen) via the diaphragm or newer membrane electrolytic process, yielding a high purity caustic soda solution.


Caustic Soda is used in many industries as a strong chemical base in the manufacture of pulp and paper, alumina, refineries, textiles, water treatment, chemical intermediates, soaps and detergents.

Product Grades

  • Diaphragm – Standard grade caustic
  • Membrane – High purity, low salt caustic