Evaluation of the purity and iodine content of edible salts in the supply level of Kermanshah province

The best way to compensation for iodine shortage, is using iodized salt. It is a trace element mineral and vital for human life. Its deficiency causes a large thyroid gland (goiter). Soil of many areas it is not containing sufficient amounts of this essential nutrient. Therefore, agricultural products and livestock products in these areas are deficient in iodine. Considering the daily consumption of oral salt by persons, this study was carried out to determine the amount of iodine content and purity percentage which supply to Kermanshah city was implemented. For this research, 40 samples of salt were prepared from various food stores in the city (first six months of 1396). The iodine content of the samples was tested according to standard titration and purity percentage according to standard No 3769. The results obtained according to the national standard of iodine (20-55 ppm were acceptable) and purity percentage (up to 99.2% were accepted and less than (unacceptable) has been interpreted. So that the iodine amount of 29 samples (72.5%) from 40 samples were in the range of (20-55), and aspect purity 30 samples (75%) were in accordance with the standard and had a minimum purity (99.2%), and finally (12.5%) of the total samples in both factors were in conflict with the determined standards.