Historedia
Person

Desormes

Events
1
Episodes
4
Years
1811–1813

Every event in Historedia whose sources name Desormes, with the role they cite and all of that event’s episodes. This is not a biography, and mentions are grouped by name, so two people with the same name can share this page.

Events and episodes

  1. Bernard Courtois discovers iodine

    1811–1813

    Role: Publicizer

    1. 1811 · Normandy and Brittany shoresDiscovery from Seaweed Ash

      Courtois discovered iodine in late 1811 by adding sulfuric acid to seaweed ash while producing saltpetre.

    2. 1813 · ParisRecognition of Courtois

      Davy and Gay-Lussac acknowledged Courtois as the true discoverer despite arguments over identification.

    3. 29 November 1813 · Imperial Institut de FrancePublic Announcement

      Desormes and Clément made Courtois' discovery public at the Imperial Institut de France in November 1813.

    4. 6 December 1813 · ParisGay-Lussac Identification

      Gay-Lussac announced the substance was an element on 6 December 1813 and named it iode in 1813.

Sources

  1. Iodine Wikipedia, revision of 2026-10-01