Extraction of iodine from kelp
- Created by: Saaamm
- Created on: 27-03-14 14:38
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- Extraction of iodine from kelp
- Iodine was discovered in 1811.
- Was extracted from kelp,which is obtained by burning seaweed.
- Some iodine still produced in this way.
- Was extracted from kelp,which is obtained by burning seaweed.
- Salts such as sodium chloride,potassium chloride and potassium sulphate are removed from kelp by washing with water.
- Residue is then heated with manganese dioxide and concentrated sulfuric acid, iodine is then liberated.
- 2I- + MnO2 +4H+ -----> Mn2+ +2H2O +I2
- Iodine was discovered in 1811.
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