Iridiumoxid
Iridium oxide, often written as iridium oxide or IrO2 in its best-known form, is an inorganic compound of iridium and oxygen. The term Iridiumoxid can refer to several oxides of iridium, but IrO2 (iridium(IV) oxide) is the most widely encountered and remains the principal oxide in commercial and research contexts. Other oxides, such as IrO3 and IrO4, have been prepared under strong oxidizing conditions or in complex solid-state syntheses, but they are less common and typically less stable under ambient conditions.
IrO2 has a rutile-type crystal structure and a high melting point. It is dense, hard, and chemically
Preparation methods include direct oxidation of metallic iridium at high temperatures, precipitation from iridium salts followed
Applications center on its performance as an electrochemical and protective material. Iridium oxide compounds, especially thin
Safety notes: iridium compounds are generally of low to moderate toxicity; handling should follow standard laboratory