can take place, thus allowing proper mixing of the reactants.
At the same time, carbon dioxide is produced in another chamber called the time kiln. Here, limestone or calcium carbonate is heated so that it decomposes into calcium oxide and carbon dioxide:
CaCO3(s)1000 CaO(s) + CO2(g)
The carbon dioxide gas is gas is forced upwards through the Solvay tower. Lt reacts with the ammoniated brine travelling in the opposite direction to from sodium hydrogen carbonate
( NaHCO3):
NH3(aq) + H2O (l)+ CO2(g) NH4HCO3(aq)