What is Sodium Carbonate?
Sodium carbonate is an inorganic chemical compound. Sodium carbonate is what is commonly known as Soda ash. Soda ash is extracted from trona. Trona is a double salt containing sodium carbonate and sodium hydrogen carbonate formed as a result of the series of evaporation processes taking place at lakes.
Sodium Carbonate Formula
Sodium carbonate is a diazonium salt of carbonic acid with chemical formula Na2CO3. It is also known as Soda crystals, soda ash, washing soda. This inorganic compound is water-soluble and when dissolved in water, it forms carbonic acid and sodium hydroxide. In its pure form, it is white powder and odourless. It is a strong base and acts as an antacid.
Sodium carbonate can be produced by four processes – “Solvay process, Labnac process, Dual-process, Electrolytic process”. Since it is a weak acid it is slightly soluble in ethanol and insoluble in alcohol. One of the important uses of Na2CO3 is as a water softener. pH is about 10.52
Properties of Sodium Carbonate – Na2CO3
|Molecular Weight/ Molar Mass||105.9888 g/mol|
|Boiling Point||1,600 °C|
|Melting Point||851 °C|
Sodium Carbonate Structure – Na2CO3
Uses of Sodium Carbonate (Na2CO3)
The uses of sodium carbonate are listed below.
- It is used in the manufacture of detergents, soaps, paper.
- It is used in as a wetting agent in brick industry
- It is used as an abrasive and foaming agent in toothpaste
- It is used as a pH modifier
- It is used as water softener – Hard water which consists of magnesium and calcium ions are precipitated by carbonate
Learn more about the chemical behaviour and importance of Na2CO3 with the expert faculties at BYJU’S.