Q. 50 A3.7( 11 Votes )
Describe how wash
Sodium carbonate is manufactured by the thermal decomposition of sodium hydrogen carbonate.
NaCl + CO2 + NH3 + H2O ⇨ NH4Cl + NaHCO3
The sodium carbonate obtained in this process is dry. It is called soda ash or anhydrous sodium carbonate. Washing soda is obtained by rehydration of anhydrous sodium carbonate.
Na2CO3 + 10H2O ⇨ Na2CO3.10H2O
Since there are 10 water molecules in washing soda, hence it is known as Sodium bicarbonate decahydrate.
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