Paul Lebeau

Paul Marie Alfred Lebeau (19 December 1868 – 18 November 1959) was a French chemist. He studied at the elite École supérieure de physique et de chimie industrielles de la ville de Paris (ESPCI).^[1] Together with his doctoral advisor Henri Moissan he was working on fluorine chemistry discovering several new compounds, like bromine trifluoride, oxygen difluoride, selenium tetrafluoride and sulfur hexafluoride.

Paul Lebeau
Born	(1868-12-19)19 December 1868 Boiscommun, France
Died	18 November 1959(1959-11-18) (aged 90) Massy, France
Nationality	French
Known for	discovery of several fluorine compound
Scientific career
Doctoral advisor	Henri Moissan

In 1899, he was able to obtain pure beryllium by electrolysis sodium fluoroberyllate (Na₂[BeF₂]).

In World War I, he improved the gas mask design used by the French army.