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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 55,933 page views. His biography is available in 15 different languages on Wikipedia. Johan Kjeldahl is the 443rd most popular chemist (down from 397th in 2019), the 394th most popular biography from Denmark (down from 328th in 2019) and the 6th most popular Danish Chemist.

Memorability Metrics

  • 56k

    Page Views (PV)

  • 48.43

    Historical Popularity Index (HPI)

  • 15

    Languages Editions (L)

  • 5.95

    Effective Languages (L*)

  • 1.76

    Coefficient of Variation (CV)

Page views of Johan Kjeldahls by language


Among CHEMISTS

Among chemists, Johan Kjeldahl ranks 443 out of 509Before him are Jacques-Louis Soret, Michael Grätzel, Ferdinand Reich, Anna Sundström, Peter Woulfe, and Alfred Stock. After him are Pierre Adet, Hans Tropsch, Frederick Abel, Hugo Schiff, Hermann Wilhelm Vogel, and Per Teodor Cleve.

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Contemporaries

Among people born in 1849, Johan Kjeldahl ranks 81Before him are Edmund Barton, William Merritt Chase, William Knox D'Arcy, Christian Rohlfs, Alexander Duff, 1st Duke of Fife, and Alexander von Krobatin. After him are John Hartley, Princess Marie of Hanover, Pedro Montt, Emil Zuckerkandl, Ivan Evstratiev Geshov, and Rafael Reyes. Among people deceased in 1900, Johan Kjeldahl ranks 62Before him are Prince Christian Victor of Schleswig-Holstein, Dankmar Adler, Jean Frédéric Frenet, Dmitry Grigorovich, Alexandre de Serpa Pinto, and John Anderson. After him are Edmond de Sélys Longchamps, Sigbjørn Obstfelder, Catherine Wolfe Bruce, Gustaf Åkerhielm, Alphonse Milne-Edwards, and Wilhelm Kühne.

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 394 out of 893Before him are Lorenz Frølich (1820), Kurt Nielsen (1930), Johnny Hansen (1943), William Wain Prior (1876), Ari Behn (1972), and Trine Dyrholm (1972). After him are Charles Winckler (1867), Hilmar Baunsgaard (1920), Albert Küchler (1803), Carl Christian Hall (1812), Christian August Lorentzen (1749), and Harald Høffding (1843).

Among CHEMISTS In Denmark

Among chemists born in Denmark, Johan Kjeldahl ranks 6Before him are Henrik Dam (1895), Johannes Nicolaus Brønsted (1879), Sophia Brahe (1556), S. P. L. Sørensen (1868), and Rasmus Bartholin (1625). After him are Hans Peter Jørgen Julius Thomsen (1826).