Difference Between Catalyst and Reagent
The key difference between catalyst and reagent is that catalysts are not consumed during the chemical reaction, whereas reagents may or may be consumed during a chemical reaction.
Catalyst and regent are two important terms we often use in analytical chemistry to describe chemical reactions. Some people also use the two terms reagent and reactant interchangeably even though there is a slight difference between them. Catalyst is a substance that can increase the reaction rate of a particular chemical reaction, while reagent is a substance or mixture for use in chemical analysis or other reactions.