Peter Jacob Hjelm
Swedish chemist / From Wikipedia, the free encyclopedia
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Peter (Petter) Jacob Hjelm (2 October 1746 – 7 October 1813) was a Swedish chemist[1] and the first person to isolate the element molybdenum in 1781, four years after its discovery by Swedish chemist Carl Wilhelm Scheele.[2][3] Working with Molybdic acid,[4] Hjelm chemically reduced molybdenum oxide with carbon in an oxygen-free atmosphere, resulting in carbon dioxide and a near-pure dark metal powder to which he gave the name 'molybdenum'. His first publication on molybdenum appeared in 1790.[5][4][6][7]
Quick Facts Born, Died ...
Peter Jacob Hjelm | |
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Born | (1746-10-02)2 October 1746 |
Died | 7 October 1813(1813-10-07) (aged 67) |
Alma mater | University of Uppsala |
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