Ir-191 Isotope Information and Examples of Enriched Ir-191 Applications:

Iridium-191 isotope (Ir-191 isotope, 191Ir isotope)

  • Ir-191 isotope is used for Iridium-192 radionuclide (radioisotope) production (can be used as a radiation source in radiographic testing and radiotherapy);
  • Ir-191 isotope is used for Osmium-189m nuclear isomer production (can be used in life science for healthcare and medical applications and pharmaceuticals industries);
  • Ir-191 isotope is used for geological studies;

Ir-191 isotope is available to order from BuyIsotope.com in Ir-191 metal chemical form. Please contact us via request a Ir-191 quote BuyIsotope.com to order Ir-191 isotope to get Ir-191 price to buy Ir-191 isotope.

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Ir-191 Properties:

PropertyIR-191
Number of Protons191
Abundance0.373
Atomic Number77
Atomic Radius136
Atomic Mass191
Spin1.5
Quadrupole Moment0.816
Electronegativity (Paulig)2.2
Electron Configuration Blockd
VDW Radius (mm3)236
Mass Uncertainty2e-05
g-factor (g value)0.1005
Half LifeStable

Iridium Information

Very hard and brittle, silvery metallic transition element. It has a yellowish cast to it. Salts of iridium are highly colored. It is the most corrosion resistant metal known, not attacked by any acid, but is attacked by molten salts. There are two natural isotopes of iridium, and 4 radioisotopes, the most stable being Ir-192 with a half-life of 73.83 days. Ir-192 decays into Platinum, while the other radioisotopes decay into Osmium. Iridium is used in high temperature apparatus, electrical contacts, and as a hardening agent for platinumpy. Discovered in 1803 by Smithson Tennant in England. The name comes from the Greek word iris, which means rainbow. Iridium metal is generally non-toxic due to its relative unreactivity, but iridium compounds should be considered highly toxic.

Used with osmium to tip gold pen points, to make crucible and special containers. Also to make alloys used for standard weights and measures, and heat-resistant alloys. Also as hardening agent for platinum.

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