Sunday, December 11, 2011

Where to Get Mercury(II) iodide

Mercury(II) iodide is a semiconductor material, used in some x-ray and gamma ray detection and imaging devices operating at room temperatures. Mercury(II) iodide displays thermochromism; when heated above 126 °C, it undergoes phase transition from the alpha crystalline form to a pale yellow beta form. As the sample cools, it gradually reacquires its original color. It is often used for thermochromism demonstrations. It can appear as a precipitate in many reactions.
In medicine, mercury(II) iodide was formerly used as a treatment for syphilis (see Protiodide). Molecular Weight:  454.40 g/mol. In veterinary medicine, mercury(II) iodide is used in blister ointments in exostoses, bursal enlargement, etc. Stable. Incompatible with strong oxidizing agents, potassium, sodium, interhalogens. Light-sensitive.
Mercury(II) iodide (HgI2) is a chemical compound with an appearance of red-orange crystals. Unlike mercury(II) chloride it is hardly soluble in water (<100 ppm). Mercury(II) iodide is also know as Mercuric iodide. Its CAS. is 774-29-0. It is used for preparation of Nessler's reagent, used for detection of presence of ammonia. Molecular formula: HgI2. It is a semiconductor material, used in some x-ray and gamma ray detection and imaging devices operating at room temperatures. In medicine, mercury(II) iodide was formerly used as a treatment for syphilis (see Protiodide).

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