Preparation of seed iodized oil.

Synthesis of iodized oil: iodized oil was prepared after modified T. Ma’s method as follows : safflower, Soya bean, corn, rice bran or peanut oils reacted with dried hydroids acid (HI) which was powdered by hydrolysis of phosphorus trioxide (PI3), a reaction between red phosphorus and iodine. The resulting products were esterified with sodium ethoxide. The end product was identified as iodized oil by nuclear magnetic resonance spectrometers (NMR), infrared spectrophotometers (IR) and gas chromatography (GC). The preparation was kept in a cool place under light tight condition. The products were proved to be stable and free of any toxicity. The preparative scale production of the iodized oil for endemic goiter control is under way.