Discuss the various reactions that occur in the Solvay process.
Solvay process is used to prepare sodium carbonate.
When carbon dioxide gas is bubbled through a brine solution saturated with ammonia, sodium hydrogen carbonate is formed. This sodium hydrogen carbonate is then converted to sodium carbonate.
Step 1: Brine solution is saturated with ammonia.
2NH3 + H2O + CO2 → (NH4)2 CO3
This ammoniated brine is filtered to remove any impurity.
Step 2: Carbon dioxide is reacted with this ammoniated brine to result in the formation of insoluble sodium hydrogen carbonate.
NaCl + NH4HCO3 → NaHCO3 + NH4Cl
Step 3: The solution containing crystals of NaHCO3 is filtered to obtain NaHCO3.
Step 4: NaHCO3 is heated strongly to convert it into NaHCO3.
2NaHCO3 → Na2CO3 + CO2 + H2O
Step 5: To recover ammonia, the filtrate (after removing NaHCO3) is mixed with Ca(OH)2 and heated.
The overall reaction taking place in Solvay process is 2NaCl + CaCO3 → Na2CO3 + CaCl2
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Welcome to the NCERT Solutions for Class 11 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 12: Discuss the various reactions that occur in the Solvay process.....
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