Osmium Tetroxide
Synonyms
Acid, Osmic
Osmic Acid
Osmium oxide (OsO4), (T-4)-
Tetroxide, Osmium
(T-4)-Osmium oxide (OsO4). A highly toxic and volatile oxide of osmium used in industry as an oxidizing agent. It is also used as a histological fixative and stain and as a synovectomy agent in arthritic joints. Its vapor can cause eye, skin, and lung damage.