Claude Louis Berthollet
Claude Louis Berthollet was a SavoyardFrench chemist who became vice president of the French Senate in 1804. He is known for his scientific contributions to theory of chemical equilibria via the mechanism of reverse chemical reactions, and for his contribution to modern chemical nomenclature. On a practical basis, Berthollet was the first to demonstrate the bleaching action of chlorine gas, and was first to develop a solution of sodium hypochlorite as a modern bleaching agent.
Claude Louis Berthollet was born in Talloires, near Annecy, then part of the Duchy of Savoy, in 1749.
Source: Wikipedia