Write name, method of preparation and uses of following :

Na₂CO₃.10H₂O

Name: Sodium carbonate decahydrate or Washing soda

Methods of preparation: Washing soda is prepared by Solvay process. On heating baking soda, sodium carbonate is obtained

On recrystallization od sodium carbonate, washing soda is formed:

Na₂CO₃ +10H₂O + crystallization → Na₂CO₃.10H₂O

Uses:

a. It is used for washing and cleaning purpose.

b. It is used in paper, paint and textile industry.

c. It is used as a laboratory reagent.