Solvay process: Difference between revisions
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#:{{#Chem: NaCl + NH3 + H2O + CO2 = NaHCO3↓(s) + NH4Cl(aq)}} | #:{{#Chem: NaCl + NH3 + H2O + CO2 = NaHCO3↓(s) + NH4Cl(aq)}} | ||
# Filter off the [[sodium bicarbonate]] | # Filter off the [[sodium bicarbonate]] | ||
# Recombine the [[calcium oxide]] with the aqueous [[ammonium chloride]] giving [[ammonia]] and [[calcium chloride]]. | |||
#: {{#Chem: 2NH4Cl(aq) + CaO = 2NH3 + CaCl2 +H2O}} | #: {{#Chem: 2NH4Cl(aq) + CaO = 2NH3 + CaCl2 +H2O}} | ||
[[Category:Processes]] | [[Category:Processes]] | ||
Revision as of 22:50, 14 October 2023
The Solvay Process is a chemical process which uses ammonia to convert salt and calcium carbonate into sodium carbonate and calcium chloride.
- Roastlcalcium carbonate (Limestone) to give calcium oxide and carbon dioxide:
- CaCO3 → CaO + CO2 // roast
- Bubble carbon dioxide through a mixture of aqueous ammonia and salt in water, giving ammonium chloride and sodium bicarbonate
- NaCl + NH3 + H2O + CO2 → NaHCO3↓(s) + NH4Cl(aq)
- Filter off the sodium bicarbonate
- Recombine the calcium oxide with the aqueous ammonium chloride giving ammonia and calcium chloride.
- 2 NH4Cl(aq) + CaO → 2 NH3 + CaCl2 + H2O