![](http://www.alamy.com/thumbs/6/7A31F614-321D-491A-8F1D-2A21935F1749/KCEPJR.jpg)
Portrait of Louis Jacques Thénard (1777-1857) a French chemist. Dated 19th Century
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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archival, archive, century, chemistryteacherauthorhistory, historical, history, jacques, louis, peroxide19th, portrait, portraitengravingengravedlouis, sciencesciencescientisthydrogen, énard, énardfrenchfrancechemistchemistryhistory