Nobel Prize in Chemistry 1956

Sir Cyril Norman Hinshelwood

Photo from the Nobel Foundation archive.

Prize share: 1/2

Nikolay Nikolaevich Semenov

Photo from the Nobel Foundation archive.

Prize share: 1/2

The Nobel Prize in Chemistry 1956 was awarded jointly to Sir Cyril Norman Hinshelwood and Nikolay Nikolaevich Semenov "for their researches into the mechanism of chemical reactions"

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MLA style: The Nobel Prize in Chemistry 1956. NobelPrize.org. Nobel Prize Outreach 2026. Mon. 20 Jul 2026. <https://www.nobelprize.org/prizes/chemistry/1956/summary/>

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