 1742 - Carl Wilhelm Scheele born: discovered chlorine (Cl, element 17); isolated oxygen ("fire air"); Scheele's green; isolated phosphorus (P, element 15) from bone ash; research on action of light on silver salts; synthesized organic acids. |
| 1749 - Claude-Louis Berthollet born: steps toward the law of mass action; analysis of ammonia; discovered bleaching action of chlorine; discovered composition of prussic acid (HCN); showed that acids need not contain oxygen. |
| 1819 - Eilhard Mitscherlich reads paper on isomorphism to Royal Academy of Science, Berlin. |
| 1868 - Fritz Haber born: high-pressure synthesis of ammonia from hydrogen and nitrogen (Haber process); Nobel Prize, 1918. |
| 1919 - William Nunn Lipscomb, Jr. born: three-dimensional structure of enzymes and proteins; research on boranes; Nobel Prize, 1976. |
sources: http://webserver.lemoyne.edu/faculty/giunta/week.html, http://todayinsci.com
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