Iodine Analysis

The oxygen flask method for the determination of Iodine in organic and inorganic compounds consists of a combustion procedure followed by a titrimetric determination. Combustion of the sample in oxygen yields water-soluble inorganic products. After combustion an excess of Bromine in Acetic Acid is added to convert Iodine to Iodate. Formic Acid is added to destroy the excess Bromine. The solution is acidified with dilute sulphuric acid and an excess of potassium Iodide added. The liberated Iodine is titrated with Sodium Thiosulphate.

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