Crystalline iodine

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Specification

Chemical formula: I2

International name: IODINE

CAS No: 7553-56-2

Appearance: gray-black crystals with purple metallic sheen

Packing: drums, 50kg; 2,0kg banks; banks 0,5kg

Storage: Store in a dry, well-ventilated area

Iodine, granular iodine (crystal) - chemical element belonging to the halogens - black and gray crystals with purple metallic sheen; readily forms a purple pair having a pungent odor.

Iodine granular soluble in most organic solvents. Iodine solution in hydrocarbons, their halogen, nitro and CS2 are colored purple, water and organic solvents containing N, S and O - brown.
Receiving
Crystalline iodine is found in nature in dispersed state in igneous and sedimentary rocks. Iodine crystal are easily leached waters and concentrated organisms, for example seaweed ash which contains up to 0.5% iodine. Industrial amount of iodine found in the groundwater of oil and gas fields in Selitrennoe deposits (up 1%). Iodine readily isolated in a free state from solutions of its salts.

Application
Iodine is used granulated
• for inorganic and organic compounds of iodine as a catalyst in organic synthesis,
• as a hydrogen acceptor in the dehydrogenation of saturated hydrocarbons,
• in medicine as antiseptic and antithyroid drugs, moreover artificial radioactive isotopes of iodine used for the diagnosis and treatment of diseases of the thyroid gland
• for refining metal iodide (eg., Ti, Zr, Hf), the reagent, etc. in iodometry.

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