Sodium hydroxide

Caustic soda, also known as sodium hydroxide, is a caustic inorganic chemical compound with the formula NaOH. It is a clear, colourless liquid that is easily soluble in water. Due to its strong alkaline nature, sodium hydroxide is often used as a base solution in the chemical industry. It is used in the production of soaps, cleaning products, textiles, paper, plastics and many other chemical products. In industrial processes such as biodiesel production or the production of paper and pulp, caustic soda is used as a catalyst or reagent. It also plays a role in metal processing, such as etching and cleaning metals.


  • NaOH aqueous
  • caustic soda 50%
  • caustic soda

General information:

Abbreviation NAOH
CAS number 1310-73-2
EC no: 215-185-5
REACH Registration No.  
MATSEN Article no. 1600
Sum formula: NaOH
Available packaging loose
Aggregate state liquid
Form liquid
Colour colourless
Odour odourless
Purity 50%
Boiling point 142°C
Melting point 12°C

Safety data sheet and specifications