1-624-270 - The Print Collector/Heritage Images

Christian Friedrich Schoenbein (1799-1868), German-Swiss chemist, 1900. Schoebein is perhaps best known his discovery of guncotton. In 1838, he discovered the principle behind the fuel cell, and in 1839 he discovered ozone (a form of oxygen) during experiments he performed on the slow oxidation of white phosphorus and the electrolysis of water.