Sodium Chloride - NaCl

What is Sodium Chloride?

Sodium Chloride is an ionic compound with chemical formula NaCl. It is also known as salt. It occurs in oceans and sea waters. It is also found as rock salt. About 1% to 5 % of sea water is made of NaCl. It is a crystalline solid, white in color. In its aqueous form it is called saline solution. This compound is water soluble and consists of sodium cation and chloride anion. The sodium and chloride ion are present in the ratio 1:1. It is widely known as table salt and is mostly used in food industry for preservation and flavoring. The PH of sodium chloride is 7.

Properties of Sodium Chloride – NaCl


Sodium Chloride

Molecular Weight/ Molar Mass

58.44 g/mol


2.165 g/cm3

Boiling Point

1,413 °C

Melting Point

801 °C

Sodium Chloride structure – NaCl

Sodium Chloride structure

NaCl Uses (Sodium Chloride)

  • It is used in medicine – Saline solution in nasal spray
  • It is used in cleansers like shampoo, toothpaste
  • It is used in water softening
  • It is used in soda ash industry to produce sodium carbonate through solvay process
  • It is used in fire extinguishers
  • It is used in paper industry, textile industry and in the construction of roads

Learn more about the structure and properties of NaCl from the expert faculties at BYJU’S.

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The chemical name of vitamin C is