A gun used by a chemist: Lavoisier's "analysis" of water


synthèse de l'eau

The apparatus of Lavoisier

"Lavoisier disposed a gun barrel filled with iron nails (F) in a carbon furnace and heated it getting red-hot. Then he let pass water vapour produced in a retort (A) through that barrel. Hydrogen was collected at (H), the iron nails were weighed after reaction. Lavoisier saw that they got rusty and weighed more than before the reaction.