Chemical element with symbol Os and atomic number 76.
1 Organic-inorganic mixed-valence systems with strongly-coupled triarylamine and cyclometalated osmium have been developed.
2 In South America this metal is found native, associated with platinum and osmium .
3 The metals platinum, iridium, rhodium, osmium and palladium do not fuse.
4 By the time you appeared with your heroin problem, I had replaced palladium with osmium .
5 Iridium occurs in nature associated with osmium , gold, and platinum, in the mines of Russia.
6 This was shown by zinc iodide and osmium staining.
7 Further, the smaller cell takes a colour in carmine, osmium , etc., more strongly than the larger.
8 The ore of osmium and iridium can be decomposed, and the former recognized by its fetid odor.
9 Owing to its extreme brittleness, osmium was finely divided and made into a paste of organic material.
10 A great variety of methods for coating incandescent lamp filaments with silicon, titanium, chromium, osmium , boron, etc.
11 The metal osmium , if exposed to the flame of oxidation, fuses and is finally dissipated as osmic acid.
12 Next to osmium , iodium, and platinum, it is the heaviest of metals, being nineteen times heavier than water.
13 The osmium filament appeared in 1905 and its invention is due to Welsbach, who had produced the marvelous gas-mantle.
14 Gold now ranks highest in value of all metals, the competition of osmium and iridium having been over come.
15 Valence in degree may extend as high as seven or eight, as in the cases of iodine and osmium respectively.
16 A highly toxic chemical called osmium tetroxide was to be used in a device, ABC News reported in the United States.
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