The difference between alkali lime and quicklime
Can not be absorbed by concentrated sulfuric acid, because hydrogen sulfide gas will be oxidized to sulfur dioxide by concentrated sulfuric acid, while concentrated sulfuric acid itself is reduced to produce sulfur dioxide gas, that is to say, a new impurity.
Calori concentrated sulfuric acid does oxidize hydrogen sulfide gas, but it does not produce solid sulfur because solid sulfur will continue to oxidize in the concentrated sulfuric acid environment, and alkali lime and lime are different
Alkali lime is the main component of sodium hydroxide and lime, hydrogen sulfide can be absorbed by alkali lime
