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Baking soda can be produced by the reaction of carbon dioxide with an aqueous solution of sodium hydroxide, or by treating a sodium carbonate solution with carbon dioxide. It can also be prepared by the Solvay process, which is the reaction of sodium chloride, ammonia, and carbon dioxide in water.
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On heating sodium hydrogen carbonate decomposes to form sodium carbonate. This anhydrous sodium carbonate is known as soda ash. ... Thirdly, anhydrous sodium carbonate or soda ash is dissolved in water and recrystallised to get washing soda crystals containing 10 molecules of water of crystallisation.
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BAKING SODA
{ SODIUM BICARBONATE }
NaHCO3
formation :
Nacl + H20 + CO2 + NH2 - NaHCO3 + NH4Cl
uses ;
- in factories
- in household work
WASHING SODA
{ Sodium Carbonate }
Na2Co3.10H2O
formation :
NaHCO3 --heat-- Na2CO3 + H20 + CO2
Na2Co3 + 10H20 - Na2Co3. 10H2O
uses:
- in factories
- in household
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