how washing soda obtained?
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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. ... On heating sodium hydrogen carbonate decomposes to form sodium carbonate.
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Sodium carbonate obtained is dissoved in water and crystals of washing soda are obtained by crystallization. Uses of washing soda: ... (ii) Sodium carbonate covers and kills spores. (iii) It can also be used in textile and petroleum refining.
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