🗊Презентация Iodine. Physical properties. Application of iodine

Iodine. Physical properties. Application of iodine.

Iodine

Physical properties. Physical properties.

Iodine was discovered in 1811 Courtois in the ashes of seaweed, and from 1815 Gay-Lussac began to consider it as a chemical element. Bernard Courtois

Very interesting version of the discovery of iodine - the culprit who was beloved cat Courtois: «I worked in the laboratory of the chemist was lying on the shoulder of a cat who, wanting to have fun, jump on the table and pushed to the floor standing nearby vessels, one of which was an alcoholic solution of seaweed ash and in the second - sulfuric acid. After mixing the liquid there was a cloud of blue-purple pair, which was nothing short of iodine.» Very interesting version of the discovery of iodine - the culprit who was beloved cat Courtois: «I worked in the laboratory of the chemist was lying on the shoulder of a cat who, wanting to have fun, jump on the table and pushed to the floor standing nearby vessels, one of which was an alcoholic solution of seaweed ash and in the second - sulfuric acid. After mixing the liquid there was a cloud of blue-purple pair, which was nothing short of iodine.»

Medical applications 5 - percent alcohol solution of iodine used to disinfect the skin around the wound. In radiographic and tomographic studies are widely used iodine-containing contrast agents. Potassium iodide has been used as an expectorant, although this use is increasingly uncommon. In medicine, potassium iodide is usually used to treat acute thyrotoxicosis. It is also used to block uptake of iodine-131 in the thyroid gland.

light Sources

Forensics.

Manufacture of accumulators:

Radio-electronic industry:

Qualitative reaction with starch. Qualitative reaction with starch.

The world production of iodine.

Crossword puzzle with numbers.