Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Iridium (Kelsey Taylor)


Published on

Published in: Technology, Business
  • Be the first to comment

Iridium (Kelsey Taylor)

  1. 1. Iridium Kelsey Taylor CHE: 120-010Element Project
  2. 2. Basic InformationSymbol: IrAtomic mass: 192.22 amuTransition metalAtomic number: 77
  3. 3. History of IridiumDiscovered in 1803 by Smithson Tennant (English; Yorkshire, England)It was found in the residue left behind by platinum when it dissolved in a mixture of hydrochloric acid and nitric acid.The term Iridium comes from the Latin term “iris” (rainbow) because many of the salts found within Iridium were brightly colored.
  4. 4. Smithson Tennant
  5. 5. Properties of IrIridium is a solid at room temperature.Color: whiteBoiling point: 4703 K (4430˚C)Melting point: 2720 K (2447˚C)Density: 22.56 g/cm³ (at 293 K)The most common isotope of Iridium is 193Ir and the most stable are 193Ir and 191Ir
  6. 6. Uses of IrIridium is mainly used in platinum alloys as a hardening agent.It is also used in making crucibles and making equipment that is used at high temperatures, heavy-duty electrical contacts, and in the tips of pens.Radioactive isotopes are used in cancer treatment in radiation therapy.
  7. 7. Availability of IrIridium is found with platinum and osmium in alluvial deposits in many alloysIt is also recovered as a by-product in the nickel mining industryCost: $2300 for 100g in bulk
  8. 8. Resources m.html s/ir.html element-iridium.htm