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  2. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of diamond can be more expensive than rhodium. Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars.

  3. Iridium - Wikipedia

    en.wikipedia.org/wiki/Iridium

    Iridium compounds are used as catalysts in the Cativa process for carbonylation of methanol to produce acetic acid. [92] [93] Iridium complexes are often active for asymmetric hydrogenation both by traditional hydrogenation. [94] and transfer hydrogenation. [95] This property is the basis of the industrial route to the chiral herbicide (S ...

  4. Osmiridium - Wikipedia

    en.wikipedia.org/wiki/Osmiridium

    Osmiridium has been defined as containing a higher proportion of iridium, with iridosmine containing more osmium. However, as the content of the natural Os-Ir alloys varies considerably, the constituent percentages of specimens often reflects the reverse situation of osmiridium describing specimens containing a higher proportion of osmium and ...

  5. Iridium compounds - Wikipedia

    en.wikipedia.org/wiki/Iridium_compounds

    Iridium compounds are compounds containing the element iridium (Ir). Iridium forms compounds in oxidation states between −3 and +9, but the most common oxidation states are +1, +2, +3, and +4. [2] Well-characterized compounds containing iridium in the +6 oxidation state include IrF 6 and the oxides Sr 2 MgIrO 6 and Sr 2 CaIrO 6.

  6. Iridium-192 - Wikipedia

    en.wikipedia.org/wiki/Iridium-192

    Iridium-192 (symbol 192 Ir) is a radioactive isotope of iridium, with a half-life of 73.827 days. [1] It decays by emitting beta (β) particles and gamma (γ) radiation. About 96% of 192 Ir decays occur via emission of β and γ radiation, leading to 192 Pt. Some of the β particles are captured by other 192 Ir nuclei, which are then converted ...

  7. Near a 52-Week Low and Buying Back Shares, Is Iridium ... - AOL

    www.aol.com/near-52-week-low-buying-110700936.html

    Iridium will use a stock buyback program to turn its single-digit growth rate into a double-digit growth rate. Skip to main content. 24/7 Help. For premium support please call: 800 ...

  8. Platinum–iridium alloy - Wikipedia

    en.wikipedia.org/wiki/Platinum–iridium_alloy

    The international prototype of the kilogram (IPK) is an artifact standard of platinum–iridium alloy that was defined as having a mass of exactly one kilogram. Platinum–iridium alloys are alloys of the platinum group precious metals platinum and iridium. Typical alloy proportions are 90:10 or 70:30 (Pt:Ir).

  9. Does Iridium Communications (IRDM) have what it takes to be a top stock pick for momentum investors? Let's find out.