Sefstrom, Nils Gabriel

Nils Gabriel Sefstrom (1787-1845) unambiguously proved its existence in Swedish bar iron. 

Two unrelated discoveries of vanadium seem to have occurred. When he was experimenting with iron in 1830, Nils Gabriel Sefstrom (1787—1845), a Swedish chemist and mineralogist, identified a small amount of a new metal. Because vanadium compounds have beautiful colors, he named this new metal after Vanadis, the mythological goddess of youth and beauty in his native country, Scandinavia. 

In 1831 the Swedish chemist Nils Gabriel Sefstrom discovered a new element in iron from the Taberg mine in Smaland. Sefstrom was bom on June 2, 1787, at Ilsbo Socken, Norra Helsingland (2). He studied medicine, and received his medical degree at the age of twenty-six years. After four years of practice in a hospital, he became a professor of chemistry and science at the Caroline Institute of Medicine and Surgery, and from 1820 to 1839 he taught chemistry at the newly erected School of Mines at Falun (2,54). 

Nils Gabriel Sefstrom, 1787-1845. Swedish physician and chemist Professor at the Caroline Institute of Medicine and Surgery and at the School of Mines in Stockholm. In 1831 he discovered vanadium, an element that proved to be identical with del Rio s erythronium. ... 

Weeks, M. E., Nils Gabriel Sefstrom. The sesquicentennial of his birth, ... 

Anon., Biografi ofver Nils Gabriel Sefstrom, K. Vet. Akad. Handl., 1845,... 

Sjoberg, S. G., Nils Gabriel Sefstrom and the discovery of vanadium, J. 

Birth of Nils Gabriel Sefstrom, the rediscoverer of vanadium, in Ilsbo Socken, Sweden. Although vanadium is now known to be identical with del Rio s erythronium, the latter chemist did not distinguish clearly between chromium and the new element. 

Swedish chemist Nils Gabriel Sefstrom rediscovers vanadium. 

The element was named by Nils Gabriel Sefstrom (1787-1845) after the Scandinavian goddess of beauty Vanadis. In 1801, Andres Manuel del Rio (1764-1849) identified a new metal he called erythronium (from the Greek for red) that seemed related to uranium and chromium, but he was advised that it was actually lead chromate. In 1830, Sefstrom rediscovered the element and named it, finding out a year later that it was the same material as described by del Rio. Vanadium compounds are found in trace amounts in nature. The majority of vanadium is used as an alloy in steel production. 

Nils Gabriel Sefstrom (Ilsbo, North Helsingland, 2 June 1787-Stockholm, 30 November 1845), M.D. Uppsala 1813, at first a hospital physician (1813-1817), was from 1812 lecturer in chemistry in the Royal Military Academy at Carlberg and to 1820 assistant in chemistry at the Caroline Institute of Medicine and Surgery, teacher of chemistry at the new School of Mines in Fahlun (1820-39) and (from 1818) professor in the Artillery School in Marie-berg. He published a description of a powerful laboratory blast-furnace, in which he prepared silicon sulphide as a sublimate by heating silica in a carbon crucible in a current of hydrogen sulphide, and other papers. ... 

Vanadium 1801/1830 Andres Manuel del Rio (Mexico) Nils Gabriel Sefstrom (Sweden) ... 

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