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CGP EDU Academic Team
Published on: August 12, 2026
Write chemical changes of solvay process.
Text Solution
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(i) In ammonia absorber
NH 3 + CO 2 + H 2 O 
NH 4 HCO 3 ;
NH 4 HCO 3 + NaCl 
NaHCO 3 ↓ + NH 4 Cl
(ii) Calcination
2 NaHCO 3 
Na 2 CO 3 + CO 2 + H 2 O
(iii) In recovery tower :-
NH 4 HCO 3 
NH 3 + CO 2 + H 2 O
2NH 4 Cl +Ca(OH) 2 
2NH 3 + 2H 2 O+CaCl 2
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