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What is solvay process

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What is solvay process

Posted by सत्य सनातन? 4 years ago

CBSE > Class 11 > Chemistry

3 answers

Gaurav Seth 4 years ago

Preparation of Washing Soda

It is prepared by Solvay’s process.

(1) A cold and concentrated solution of sodium chloride is reacted with ammonia and carbon dioxide to obtain sodium hydrogen carbonate.

(2) Sodium hydrogen carbonate is separated by filtration,dried and heated.Oh heating sodium hydrogen carbonate decomposes to form sodium carbonate.

(3) Anhydrous sodium carbonate is dissolved in water and recrystallised to get washing soda crystals containing 10 molecules of water of crystallisation.

सत्य सनातन? 4 years ago

Thanks

Meghna Thapar 4 years ago

The Solvay process or ammonia-soda process is the major industrial process for the production of sodium carbonate. The ammonia-soda process was developed into its modern form by the Belgian chemist Ernest Solvay during the 1860s. The ingredients for this are readily available and inexpensive: salt brine and limestone. The Solvay process is an industrial process that uses limestone (CaCO3 ) to produce carbon dioxide (CO2 ) which reacts with ammonia (NH3 ) dissolved in brine (concentrated NaCl(aq)) to produce sodium carbonate.

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