About Jan Ketelaar
Lived 1908 – 2001 (aged 93). Jan Ketelaar was a Dutch chemist and university teacher.
Jan Arnold Albert Ketelaar (21 April 1908, Amsterdam 23 November 2001, Lochem) was a Dutch chemist and author of the textbook Chemical Constitution: an Introduction to the Theory of the Chemical Bond . Van Arkel–Ketelaar triangles are named after him.
Ketelaar's doctoral students included Sol Kimel and Robert de Levie. He was elected a member of the Royal Netherlands Academy of Arts and Sciences in 1958.
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Frequently asked questions
Who was Jan Ketelaar?
Dutch chemist (1908-2001)
When was Jan Ketelaar born?
Jan Ketelaar was born on 21 April 1908 in Amsterdam.
When did Jan Ketelaar die?
Jan Ketelaar died on 23 November 2001 in Lochem.
What was Jan Ketelaar's occupation?
Jan Ketelaar was a chemist and university teacher.
What nationality was Jan Ketelaar?
Jan Ketelaar was Dutch.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Jan Ketelaar. https://biography.guide/jan-ketelaar/
MLA: "Jan Ketelaar." Biography.guide, https://biography.guide/jan-ketelaar/.
Chicago: "Jan Ketelaar." Biography.guide. https://biography.guide/jan-ketelaar/.
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