Aleksandr butlerov biography channel

Immediately after graduating from the university, Butlerov began teaching chemistry there, at first (1849–1850) part-time, then as Carl Claus’s official assistant; from 1852, after Claus’s transfer to Dorpat University, he taught all the chemistry courses in the university. Between 1860 and 1863 he was twice rector of the university. From 1868 to 1885 Butlerov was a professor of chemistry at St. Petersburg University. In 1885, after thirty-five years of service, he retired but continued to teach speci

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