2. Foods rich in iodine are.

3. What are the foods containing iodine?

4. List of foods with high iodine content.

1. Shrimp skin, green pepper, celery, Chinese cabbage, kelp, fish, scallops, persimmons, jellyfish, sea cucumbers, mussels, spinach, grapes, apples, pears, bananas, pineapples, oranges, etc.

2. If the iodine content is too high, there may be hyperthyroidism of the thyroid gland. We must pay attention to the amount of iodine intake and choose the appropriate content. Celery and spinach are the main vegetables with the highest iodine content.

3. Iodine: iodine, a nonmetallic element, element symbol I, element No.53 in the periodic table of elements, which is located in the fifth period in the periodic table of chemical elements, and belongs to group ⅶ A and one of halogen elements.

4. 18 1 1 year French pharmacist Courtois B. first discovered elemental iodine.

5. Elemental iodine is purple-black crystal, which is easy to sublimate, and it is easy to coagulate after sublimation, which is toxic and corrosive.

6. Iodine will turn blue-purple when it meets starch.

7. Mainly used for making drugs, dyes, iodine, test paper and iodine compounds.

8. Iodine is one of the essential trace elements in human body. The total amount of iodine in healthy adults is 30 mg (20~50 mg), and the national standard for adding iodine to salt is 20-30 mg/kg.