osmium

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“
The process removes sulfur present in the ore as sulfur dioxide and, at the same time, releases osmium, which is abundant in the ore.

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Definitions (6)

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  1. noun A bluish-white, hard metallic element, found in small amounts in osmiridium, nickel, and platinum ores. It is used as a platinum hardener and in making pen points, phonograph needles, and instrument pivots. Atomic number 76; atomic weight 190.2; melting point 3,000°C; boiling point 5,000°C; specific gravity 22.57; valence 2, 3, 4, 8. See Table at element.

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Examples (50)

  • As for specific gravity or density, osmium is at the top of the list with a density of 22.5 times that of water. —  JULY, 1953 VOL
  • Furthermore, high concentrations of rare metallic elements such as platinum and osmium in the meteorites hint that their parent body wasn't large enough to completely melt and thereby form a dense, metal-rich core. —  Science News / Features, Blog Entries, Column Entries, Issues, News Items and Book Reviews
  • So the core of the Earth has lots of iron, nickel, osmium, and the like. —  WordPress.com News
  • What is the difference between hardness and strength? what is the difference between material hardness e.g osmium and strength e.g carbon steel? —  Yahoo! Answers: Latest Questions
  • HANOVER, NH Dartmouth researchers have determined that the presence of the rare element osmium is on the rise globally. —  GEN News Highlights
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Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. From Greek osmē, smell (from the strong odor of osmium tetroxide).

Toggle Century etymologies Century Dictionary (1)

  1. New Latin, from Greek ὀσμή, ὀδμή, smell, odor, from ὅζειν, smell: see odor.
 

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/ˈɑsmiəm/
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