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Osmium(III) chloride is an inorganic chemical compound of osmium metal and chlorine with the chemical formula OsCl 3. [1] [2]
Osmium(II) iodide is a black solid [35] produced by the reaction of osmium tetroxide and hydroiodic acid at 250 °C in nitrogen: [34] OsO 4 + HI → OsI 2 + H 2 O. This compound decomposes in contact with water. [35] Osmium(III) iodide is a black solid that is produced by heating hexaiodoosmic acid (H 2 OsI 6). [34] This compound is insoluble ...
Osmium chloride may refer to: Osmium(III) chloride, OsCl 3; Osmium(IV) chloride (osmium tetrachloride), OsCl 4; Osmium(V) chloride (osmium pentachloride), OsCl 5
Chemical formula. OsCl 2 ... Osmium(II) chloride or osmium dichloride is an inorganic ... (II) chloride can be prepared by disproportionation of osmium(III) chloride ...
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Osmium is a hard, brittle, blue-gray metal, and the densest stable element—about twice as dense as lead. The density of osmium is slightly greater than that of iridium; the two are so similar (22.587 versus 22.562 g/cm 3 at 20 °C) that each was at one time considered to
It was first reported in 1909 as the product of chlorination of osmium metal. [1] This route affords the high temperature polymorph: [2] Os + 2 Cl 2 → OsCl 4. This reddish-black polymorph is orthorhombic and adopts a structure in which osmium centres are octahedrally coordinated, sharing opposite edges of the OsCl 6 octahedra to form a chain. [3]
The properties of ruthenium and osmium compounds are often similar. The +2, +3, and +4 states are the most common. The +2, +3, and +4 states are the most common. The most prevalent precursor is ruthenium trichloride , a red solid that is poorly defined chemically but versatile synthetically.