give the preparation reaction of soda ash
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In the following three steps, washing soda is prepared from sodium chloride or common salt. Firstly, a cold and concentrated sodium chloride solution is reacted with ammonia and carbon dioxide to obtain sodium hydrogen carbonate. ... This anhydrous sodium carbonate is known as soda ash.
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On heating sodium hydrogen carbonate decomposes to form sodium carbonate. This anhydrous sodium carbonate is known as soda ash. The preparation of Sodium Carbonate is also known as Solvay process. But before that calcium carbonate (limestone) was heated to release carbon dioxide.
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