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Osmium (from Ancient Greek ὀσμή (osmḗ) 'smell') is a chemical element; it has symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. Osmium is the densest naturally occurring element.
The classification of lost lands as continents, islands, or other regions is in some cases subjective; for example, Atlantis is variously described as either a "lost island" or a "lost continent". Lost land theories may originate in mythology or philosophy, or in scholarly or scientific theories, such as catastrophic theories of geology.
Osmium(I) iodide is a metallic grey solid produced by the reaction of osmium tetroxide and hydroiodic acid heated in a water bath for 48 hours in a carbon dioxide atmosphere. It is an amorphous compound. [34] Osmium(II) iodide is a black solid [35] produced by the reaction of osmium tetroxide and hydroiodic acid at 250 °C in nitrogen: [34]
Osmium(V) chloride is an inorganic chemical compound of osmium metal and chlorine with the chemical formula OsCl 5. [3] [4] Potential synthesis.
Common to all the lost mine legends is the idea of a valuable and mysterious resource being lost to history. Some lost mine legends have a historical basis, and some have none. Regardless, the lure of these legends is attested by the many books on the subject, and the popularity of publications such as Lost Treasure magazine. [1] [2]
Osmium tetrasulfide is an inorganic compound, a salt of osmium metal and hydrogen sulfide acid with the chemical formula OsS 4. [1] Synthesis
A museum in Ault Park near Long Sault is devoted to the Lost Villages, including several historic buildings salvaged from the communities. Other buildings from the villages were moved to the site of Upper Canada Village in Morrisburg. The flooded area also includes Crysler's Farm, where a major battle was fought during the War of 1812. A ...
Osmium pentacarbonyl is the organoosmium compound with the formula Os(CO) 5.It is the simplest isolatable carbonyl complex of osmium. Osmium pentacarbonyl is a colorless volatile liquid that is obtained by treating solid triosmium dodecacarbonyl under 200 atmospheres of carbon monoxide at 280-290 °C.