Christian Gmelin
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Christian Gottlob Gmelin (October 12, 1792 - May 13, 1860) was a German chemist.
Gmelin was professor of chemistry and pharmacy at the University of Tübingen. In 1828 he was one of the first to devise a process for the artificial manufacture of ultramarine. In 1818, Gmelin was the first to observe that lithium salts give a bright red color in flame.