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Efflorescence,Hygroscopy and Deliquescence

how is sodium...

Question

how is sodium hydrogen carbonate formed during solvay process separated from a mixture of NH4CL and NaHCO3

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Solution

During Solvay process, sodium bicarbonate (NaHCO₃) precipitates out of the solution.

NaCl + CO₂ + NH₃ + H₂O â†’ NaHCO₃ + NH₄Cl

The sodium bicarbonate (NaHCO₃) that precipitates out in the above reaction is filtered out from the hot ammonium chloride (NH₄Cl) solution.

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