CHEMIST

Johan Kjeldahl

1849 - 1900

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Johan Gustav Christoffer Thorsager Kjeldahl (Danish pronunciation: [joˈhæn ˈkʰelˌtɛˀl] 16 August 1849 – 18 July 1900), was a Danish chemist who developed a method for determining the amount of nitrogen in certain organic compounds using a laboratory technique which was named the Kjeldahl method after him. Read more on Wikipedia

Since 2007, the English Wikipedia page of Johan Kjeldahl has received more than 59,418 page views. His biography is available in 18 different languages on Wikipedia (up from 15 in 2019). Johan Kjeldahl is the 465th most popular chemist (down from 443rd in 2019), the 426th most popular biography from Denmark (down from 392nd in 2019) and the 7th most popular Danish Chemist.

Memorability Metrics

  • 59k

    Page Views (PV)

  • 49.51

    Historical Popularity Index (HPI)

  • 18

    Languages Editions (L)

  • 6.17

    Effective Languages (L*)

  • 1.97

    Coefficient of Variation (CV)

Among CHEMISTS

Among chemists, Johan Kjeldahl ranks 465 out of 602. Before him are James Crafts, Maclyn McCarty, Friedrich Accum, Takamine Jōkichi, Zdenko Hans Skraup, and Isabella Karle. After him are James Smithson, William Nicholson, Phoebus Levene, Gerhard Schrader, Hermann Wilhelm Vogel, and Pierre Adet.

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Contemporaries

Among people born in 1849, Johan Kjeldahl ranks 84. Before him are Prosper-René Blondlot, Henry Clay Frick, John Hartley, Panas Myrny, Alfred Kleiner, and Gerhard Munthe. After him are Emil Zuckerkandl, Princess Marie Alexandrine of Saxe-Weimar-Eisenach, Fernand de Langle de Cary, N. E. Brown, Ivan Evstratiev Geshov, and Alexander von Krobatin. Among people deceased in 1900, Johan Kjeldahl ranks 74. Before him are Alexandre de Serpa Pinto, Sigbjørn Obstfelder, Edmond de Sélys Longchamps, Gustaf Åkerhielm, James Edward Keeler, and Adrien René Franchet. After him are Alphonse Milne-Edwards, Albert Samain, Émile Blanchard, Dankmar Adler, Joseph Jean Pierre Laurent, and Albert Bernhard Frank.

Others Born in 1849

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Others Deceased in 1900

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In Denmark

Among people born in Denmark, Johan Kjeldahl ranks 426 out of 1,032. Before him are Thure Lindhardt (1974), Steen Steensen Blicher (1782), Anders Hejlsberg (1960), Nicklas Bendtner (1988), Ole Beich (1955), and Simon Kjær (1989). After him are Inge Sørensen (1924), Vivi Bach (1939), Lars Olsen (1961), Lis Hartel (1921), Johan Jensen (1859), and Ludvig Holstein-Holsteinborg (1815).

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Among CHEMISTS In Denmark

Among chemists born in Denmark, Johan Kjeldahl ranks 7. Before him are Henrik Dam (1895), Johannes Nicolaus Brønsted (1879), Sophia Brahe (1556), S. P. L. Sørensen (1868), Rasmus Bartholin (1625), and Morten P. Meldal (1954). After him are Hans Peter Jørgen Julius Thomsen (1826).

Danish born Chemists

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