to get a position teaching chemistry at the École polytechnique in 1884 and again in 1897.At the Collège de France, Le Chatelier succeeded Schützenberger as chair of inorganic chemistry. Later he taught at the Sorbonne university, where he replaced Henri Moissan.

At the Collège de France, Le Chatelier taught:
:*Phenomena of combustion (1898)
:*Theory of chemical equilibria, high temperature