CHEMIST

Peter Jacob Hjelm

1746 - 1813

Photo of Peter Jacob Hjelm

Icon of person Peter Jacob Hjelm

Peter (Petter) Jacob Hjelm (2 October 1746 – 7 October 1813) was a Swedish chemist and the first person to isolate the element molybdenum in 1781, four years after its discovery by Swedish chemist Carl Wilhelm Scheele. Working with Molybdic acid, 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. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Peter Jacob Hjelm is the 556th most popular chemist (up from 583rd in 2019), the 996th most popular biography from Sweden (up from 1,200th in 2019) and the 20th most popular Swedish Chemist.

Memorability Metrics

Loading...

Page views of Peter Jacob Hjelm by language

Loading...

Among CHEMISTS

Among chemists, Peter Jacob Hjelm ranks 556 out of 602. Before him are John Roebuck, Lev Chugaev, Emma P. Carr, Karl Friedrich August Rammelsberg, Florence B. Seibert, and Jürgen Hennig. After him are Edith M. Flanigen, Carl Jacob Löwig, Edward Goodrich Acheson, Hans von Pechmann, Christian Ehrenfried Weigel, and Anna J. Harrison.

Most Popular Chemists in Wikipedia

Go to all Rankings
Load previousLoad previous

Contemporaries

Among people born in 1746, Peter Jacob Hjelm ranks 36. Before him are Joachim Heinrich Campe, Bernardo de Gálvez, Charles Cameron, André Thouin, Louise du Pierry, and James Wyatt. After him are Charles Cotesworth Pinckney, Henry Grattan, and Begum Samru. Among people deceased in 1813, Peter Jacob Hjelm ranks 38. Before him are Jacques Delille, Maria Caterina Brignole, Benjamin Rush, Edmund Randolph, Sophronius of Vratsa, and James Wyatt. After him are George Clymer, Zebulon Pike, Benjamin Stoddert, Samuel Osgood, and Joshua Booth.

Others Born in 1746

Go to all Rankings
Load previousLoad previous

Others Deceased in 1813

Go to all Rankings
Load previousLoad previous

In Sweden

Among people born in Sweden, Peter Jacob Hjelm ranks 996 out of 1,879. Before him are Lars Ahlin (1915), Mary Stävin (1957), Roy Andersson (1949), Thomas Johansson (1975), Arne Månsson (1925), and Helge Liljebjörn (1904). After him are Johnny Ekström (1965), Gunnar Höjer (1875), Hans Jacobson (1947), Ruth Svedberg (1903), Daniel Norling (1888), and Assar Rönnlund (1935).

Others born in Sweden

Go to all Rankings
Load previousLoad previous

Among CHEMISTS In Sweden

Among chemists born in Sweden, Peter Jacob Hjelm ranks 20. Before him are Anders Gustaf Ekeberg (1767), Torbern Bergman (1735), Nils Gabriel Sefström (1787), Lars Fredrik Nilson (1840), Anders Jahan Retzius (1742), and Anna Sundström (1785).

Swedish born Chemists

Go to all Rankings
Load previousLoad previous