Method for producing iodine or iodine derivatives

摘要

A method for producing iodine or iodine derivatives which comprises oxidizing ammonium iodide with oxygen or oxygen-containing gas in a medium comprising a transition metal compound, a weak acid and water to produce the iodine or iodine derivatives. The iodine and iodine derivatives are useful as medical and agricultural chemicals, dyes, pigments, intermediates thereof and the like.