Iodine: historical information
- Discoveror: Bernard Courtois
- Place of discovery: France
- Date of discovery: 1811
- Origin of name : from the Greek word "iodes" meaning "violet".
Iodine was discovered by Barnard Courtois in 1811. He isolated iodine from treating seaweed ash with sulphuric acid (H2SO4) while recovering sodium and potassium compounds.