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History Of Iridium

Physical and Chemical Properties Of Iridium

How Iridium Is Used


Properties Of Iridium

Physical Properties Of Iridium:

Iridium is a transition metal, silvery-white in colour, with a density of 22.4 grams for each cubic centimetre (most dense element known to exist). It has a melting point of 2410 degrees Celsius, and a boiling point of 4130 degrees Celsius. Iridium tends to be brittle when it is cold, however, it can be shaped at higher temperatures because of increased ductility.

Chemical Properties Of Iridium:

Only existing in approximately two parts per billion in nature, and can be found in Canada, Russia, South Africa, and Alaska, USA, iridium is an extremely unreactive at SATP, and it resists corrosion better than all of the metals. However, it can react in air to form a thin layer of iridium dioxide (IrO(2)). Once heated, it can react more vigorously with oxygen and halides to form iridium dioxide and iridium trihalides, such as Ir(2)O(3), Ir(2)S(3), and K(3)[Ir[CN(6)]].

Created By CJ Cantwell. April 2012