Caustic Soda Liquid (32-50 %)

Caustic attacks any body tissue upon contact. The degree of injury depends upon
the extent and duration of contact and the temperature and concentration of the caustic.
Its corrosive action on tissues causes burns and frequently deep ulcerations.
Its contact with the eyes rapidly causes severe damage.
Caustic solution is detectable by a slippery feeling like soapy water.
Toxic limits are TLV = 2 mg. / cubic meter of air

Chemical Formula NaOH
Molecular Weight 40.00
CAS No. 1310-73-2
Parameters Average Chemical Analysis
Grade 32% Grade 50%
Physical appearance Colorless, viscous liquid
Concentration (NaOH) 32% + 1.0 % 50% + 0.5 %
Sodium Carbonate (Na2CO3) 0.3 % max. 0.5 % max.
Sodium chloride (NaCl) 0.01 % max. 0.02 % max.
Iron (Fe) 5 ppm max. 10 ppm max.
  • It is the main raw materials for the production of soap. In oil refining industry it is used to remove the acids in the oil and improve the smell and color of the oil & petroleum products.
  • In textile industry, caustic soda is used to make rayon and mercerization of cotton.
  • In paper making industry, it is used as a reagent to treat wood, rice stalks and other fibers.
  • Industrial water treatment: Regeneration of ion exchangers, waste water treatment.
  • Food industry: Purification of fats and oils and removal of fatty impurities.
  • Caustic soda is used for the extraction and purification of aluminum.

Bulk delivery, supplied in mild steel tank trucks.

  • Store in a dry place away from acids, metals like aluminum, magnesium and zinc that cause formation of flammable hydrogen
  • Immediately remove all contaminated clothing and equipment effected by the Caustic, Flush the exposed area thoroughly with a lot of water, followed by washing with a solution of 5 % ammonium chloride in water.
  • If caustic contacts the eyes, they should be irrigated immediately with plenty of water for at least 15 minutes.
  • Hold the eyelids opened during irrigation. The eyes should be then washed with a dilute boric acid solution and wash the eye with water for an additional 15 minutes. A physician should be seen immediately after the eye is thoroughly washed.
  • For personal protection, use face shields, gloves, gum-boots and protective suites.
  • Use safety shower and wash with plenty of water for at least 15 minutes.
  • Caustic soda (liquid) is transported in Mild Steel tanks and plastic drums.
Select Language »