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osmium    音标拼音: ['ɑzmiəm]
n. 锇

锇

osmium
n 1: a hard brittle blue-grey or blue-black metallic element
that is one of the platinum metals; the heaviest metal
known [synonym: {osmium}, {Os}, {atomic number 76}]

osmium \os"mi*um\ ([o^]z"m[i^]*[u^]m), n. [Gr. 'osmh` a smell,
odor, akin to 'o`zein to smell. So named in allusion to the
strong chlorinelike odor of osmic tetroxide. See {Odor}.]
(Chem.)
A rare metallic element of the platinum group with atomic
number 76. It is found native as an alloy in platinum ore,
and in iridosmine. It is a hard, infusible, bluish or grayish
white metal, and the heaviest substance known. Its tetroxide
is used in histological experiments to stain tissues. Symbol
{Os}. Atomic weight 190.2. Specific gravity 22.477.
[1913 Webster PJC]


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  • Osmium - Wikipedia
    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 Osmium has the highest density of any stable element and one of the lowest abundances in the Earth's crust Manufacturers use alloys of osmium with platinum, iridium, and other platinum-group metals for
  • Osmium | Definition, Properties, Uses, Facts | Britannica
    Osmium, chemical element, one of the platinum metals of the periodic table and the densest naturally occurring element A gray-white metal, osmium is very hard, brittle, and difficult to work, even at high temperatures Pure osmium metal does not occur in nature
  • What Is Osmium Used For? Rare Metal, Many Uses
    Osmium shows up in fountain pen tips, microscopy labs, and even cancer research Here’s how this rare, dense metal gets used across science and industry
  • Osmium: The Rarest Precious Metal Explained—Why Collectors And . . .
    Discover osmium, the rarest and densest precious metal, prized for its shimmering blue-gray crystals and extreme scarcity Learn why collectors, scientists, and investors are fascinated by its unique properties, challenges in sourcing, investment potential, and the ethical considerations behind owning this extraordinary element
  • Osmium - Element information, properties and uses | Periodic Table
    Element Osmium (Os), Group 8, Atomic Number 76, d-block, Mass 190 23 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Osmium Mining Challenges and Sources: Unveiling the World’s Rarest . . .
    Discover the complexities of osmium mining, from its extraction as a byproduct in Russia, South Africa, and Canada, to the technical, environmental, and economic challenges faced Explore sources, refining methods, and innovations shaping the future of this rare, valuable metal used in jewelry and advanced alloys
  • Osmium (Os): The Densest Precious Metal — Properties Uses
    Osmium (Os) is a chemical element with atomic number 76 and the densest naturally occurring element on Earth A hard, bluish-white precious metal belonging to the platinum group, osmium is among the scarcest elements in Earth's crust — depending on source, up to 80 times scarcer than gold Global annual production ranges from a few hundred kilograms to about one tonne, extracted as a
  • Osmium compounds - Wikipedia
    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] This compound decomposes in contact with water [35
  • Current osmium price 2026 in EUR, USD CHF - MetaMetals
    Osmium Spot Price The spot price in finance refers to the current price for immediate purchase or delivery of an asset For metals like gold, silver, platinum, and palladium, spot prices are well-established and publicly traded For osmium, the concept of a spot price exists but is limited Currently, institutional dealers are primarily active in the osmium spot market Private investors and
  • Osmium Facts, Symbol, Discovery, Properties, Uses
    What is Osmium, element history, properties (density, melting point, atomic number, weight, mass, electron configuration), uses of the metal, price





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