Johan Kjeldahl

Danish chemist (1849–1900)
Person human Q162514
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Johan Kjeldahl

Summary

Johan Kjeldahl is a human[1]. Born in Jægerspris[2], he… he was born on +1849-08-16T00:00:00Z[3]. He passed away in Tisvilde[4]. He died on +1900-07-18T00:00:00Z[5]. He worked as a chemist[6]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (34 views/month, #7,268 of 1,000,298).[7]

Key Facts

  • Johan Kjeldahl's place of birth was Jægerspris[2].
  • Johan Kjeldahl passed away in Tisvilde[4].
  • Johan Kjeldahl died in Tisvildeleje[8].
  • Johan Kjeldahl was born on +1849-08-16T00:00:00Z[3].
  • Johan Kjeldahl died on +1900-07-18T00:00:00Z[5].
  • Burial took place at Solbjerg Park Cemetery[9].
  • Johan Kjeldahl held citizenship in Kingdom of Denmark[10].
  • Johan Kjeldahl's professions included chemist[6].
  • Johan Kjeldahl's field of work was chemistry[11].
  • Johan Kjeldahl was employed by Carlsberg Laboratory[12].
  • Johan Kjeldahl was educated at Roskilde Cathedral School[13].
  • Johan Kjeldahl was educated at Den Polytekniske Læreanstalt[14].
  • Johan Kjeldahl received the Knight of the Order of the Dannebrog[15].
  • Johan Kjeldahl received the honorary doctorate of the University of Copenhagen[16].
  • Johan Kjeldahl received the Professor[17].
  • Johan Kjeldahl was a member of Royal Danish Academy of Sciences and Letters[18].
  • Johan Kjeldahl was a member of Norwegian Academy of Science and Letters[19].
  • Johan Kjeldahl's image is recorded as Kjeldahl3.JPG[20].
  • Johan Kjeldahl is recorded as male[21].
  • Johan Kjeldahl's instance of is recorded as human[22].
  • Johan Kjeldahl's VIAF cluster ID is recorded as 231148120749694791795[23].
  • Johan Kjeldahl's GND ID is recorded as 1139668358[24].
  • Johan Kjeldahl's IdRef ID is recorded as 245030417[25].
  • Johan Kjeldahl's Commons category is recorded as Johan Kjeldahl[26].
  • Johan Kjeldahl's Find a Grave memorial ID is recorded as 180676789[27].

Body

Origins and Family

Johan Kjeldahl was born in Jægerspris[2]. He was born on +1849-08-16T00:00:00Z[3].

Education

Educated at Roskilde Cathedral School[13], a gymnasium[28], in Denmark[29] and Den Polytekniske Læreanstalt[14], a university[30], in Denmark[31], founded in 1829[32], headquartered in Lyngby-Taarbæk Municipality[33].

Career and Affiliations

Johan Kjeldahl worked as a chemist[6]. His field of work was chemistry[11]. He was employed by Carlsberg Laboratory[12].

Recognition

Awards received include Knight of the Order of the Dannebrog[15], a grade of an order[34], in Denmark[35]; honorary doctorate of the University of Copenhagen[16], an award[36], in Denmark[37]; and Professor[17], a honorific prefix[38].

Death and Burial

Johan Kjeldahl died on +1900-07-18T00:00:00Z[5]. Recorded place of death include Tisvilde[4], a town[39], in Denmark[40] and Tisvildeleje[8], a holiday home area[41], in Denmark[42]. He is buried at Solbjerg Park Cemetery[9].

Works and Contributions

Things named for Johan Kjeldahl include Kjeldahl method[43], a quantitative analysis[44].

Why It Matters

Johan Kjeldahl ranks in the top 0.73% of human entities by monthly Wikipedia readership (34 views/month, #7,268 of 1,000,298).[7] He has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[45] He is known by 9 alternative names across languages and contexts.[46]

He is credited with the discovery of Kjeldahl method[47], a quantitative analysis[48]. Entities named for him include Kjeldahl method[43], a quantitative analysis[44].

FAQs

Where was Johan Kjeldahl born?

Born in Jægerspris[2], Johan Kjeldahl…

Where did Johan Kjeldahl die?

Johan Kjeldahl died in Tisvilde[4].

What did Johan Kjeldahl do for work?

Johan Kjeldahl worked as chemist[6].

Where did Johan Kjeldahl go to school?

Johan Kjeldahl was educated at Roskilde Cathedral School[13] and Den Polytekniske Læreanstalt[14].

What awards did Johan Kjeldahl receive?

Honors received include Knight of the Order of the Dannebrog[15], honorary doctorate of the University of Copenhagen[16], and Professor[17].

What did Johan Kjeldahl discover?

Johan Kjeldahl is credited as discoverer of Kjeldahl method[47].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [20] . wikidata.org.
  2. [2] . Dansk Biografisk Leksikon, 3rd edition. biografiskleksikon.lex.dk. Provenance: wikidata.org.
  3. [4] . wikidata.org.
  4. [8] . Dansk Biografisk Leksikon, 3rd edition. biografiskleksikon.lex.dk. Provenance: wikidata.org.
  5. [21] . wikidata.org.
  6. [10] . wikidata.org.
  7. [22] . wikidata.org.
  8. [13] . Dansk Biografisk Leksikon, 3rd edition. biografiskleksikon.lex.dk. Provenance: wikidata.org.
  9. [14] . Dansk Biografisk Leksikon, 3rd edition. biografiskleksikon.lex.dk. Provenance: wikidata.org.
  10. [11] . wikidata.org.
  11. [6] . wikidata.org.
  12. [12] . Dansk Biografisk Leksikon, 3rd edition. biografiskleksikon.lex.dk. Provenance: wikidata.org.
  13. [9] . Retrieved . wikidata.org.
  14. [15] . Dansk Biografisk Leksikon, 3rd edition. biografiskleksikon.lex.dk. Provenance: wikidata.org.
  15. [16] . Dansk Biografisk Leksikon, 3rd edition. biografiskleksikon.lex.dk. Provenance: wikidata.org.
  16. [17] . Dansk Biografisk Leksikon, 3rd edition. biografiskleksikon.lex.dk. Provenance: wikidata.org.
  17. [23] . wikidata.org.
  18. [24] . wikidata.org.
  19. [25] . Virtual International Authority File. Retrieved . wikidata.org.
  20. [26] . wikidata.org.
  21. [18] . wikidata.org.
  22. [19] . wikidata.org.
  23. [27] . wikidata.org.
  24. [3] . Brockhaus Enzyklopädie. wikidata.org.
  25. [5] . Brockhaus Enzyklopädie. wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [47] . wikidata.org. → on this site
  2. [43] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [39] . Wikidata. wikidata.org. → on this site
  2. [40] . Wikidata. wikidata.org. → on this site
  3. [41] . Wikidata. wikidata.org. → on this site
  4. [42] . Wikidata. wikidata.org. → on this site
  5. [28] . Wikidata. wikidata.org. → on this site
  6. [29] . Wikidata. wikidata.org. → on this site
  7. [30] . Wikidata. wikidata.org. → on this site
  8. [31] . Wikidata. wikidata.org. → on this site
  9. [32] . Wikidata. wikidata.org. → on this site
  10. [33] . Wikidata. wikidata.org. → on this site
  11. [34] . Wikidata. wikidata.org. → on this site
  12. [35] . Wikidata. wikidata.org. → on this site
  13. [36] . Wikidata. wikidata.org. → on this site
  14. [37] . Wikidata. wikidata.org. → on this site
  15. [38] . Wikidata. wikidata.org. → on this site
  16. [48] . Wikidata. wikidata.org. → on this site
  17. [44] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [7] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [45] . Wikidata sitelinks. wikidata.org.
  3. [46] . Wikidata aliases. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Johan Kjeldahl. Retrieved April 10, 2026, from https://4ort.xyz/entity/johan-kjeldahl
MLA “Johan Kjeldahl.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/johan-kjeldahl.
BibTeX @misc{4ortxyz_johan-kjeldahl_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Johan Kjeldahl}}, year = {2026}, url = {https://4ort.xyz/entity/johan-kjeldahl}, note = {Accessed: 2026-04-10}}
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