Henri Moissan, French Chemist and Inventor

Ferdinand Frederick Henri Moissan (September 28, 1852 - February 20, 1907) was a French chemist. He published his first scientific paper about the carbon dioxide and oxygen metabolism in plants, 1874. He left plant physiology and turned towards inorganic chemistry. During the 1880s he focused on fluorine chemistry. He succeeded in preparing fluorine in 1886 by the electrolysis of a solution of potassium hydrogen difluoride in liquid hydrogen fluoride. The device was built with platinum/iridium electrodes in a platinum holder and the apparatus was cooled to -50 ¬∞C. The result was to completely isolate the hydrogen produced from the negative electrode from the fluorine produced at the positive one. For this achievement, he was awarded the Nobel Prize in 1906. Moissan died suddenly in 1907, his death was attributed to an acute case of fluoriditis. It is clear that his experiments with fluorine contributed to his early death like others in his area of study.

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