Sodium Hydroxide Properties, Molecular Formula, Applications - WorldOfChemicals

Sodium Hydroxide Properties

Sodium Hydroxide



Sodium Hydroxide is a highly caustic base and alkali, that decomposes proteins at ordinary ambient temperatures and may cause severe chemical burns. It is highly soluble in water and readily absorbs moisture and carbon dioxide from the air. It is used in many industries in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents and as a drain cleaner. It is a white solid ionic compound consisting of sodium cations Na+ and hydroxide anions . It can be used for the base-driven hydrolysis of esters (as in saponification), amides and alkyl halides. However, the limited solubility of sodium hydroxide in organic solvents means that the more soluble potassium hydroxide (KOH) is often preferred. Touching sodium hydroxide solution with the bare hands, while not recommended, produces a slippery feeling.

Chemical Properties

Appearance White opaque crystals
Boiling Point 1388 °C
CAS Number 1310-73-2
Density 2.13 g/cm3
InChI 1S/Na.H2O/h;1H2/q+1;/p-1
Melting Point 318 °C
Molar Mass 39.99 g/mol
Molecular Formula NaOH
Synonyms Caustic Soda;Lye;Ascarite;White Caustic;Sodium Hydrate