List of Iridium Isotopes and Examples of Enriched Iridium Applications:

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

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

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

Iridium-193 isotope (Ir-193 isotope, 193Ir isotope)

  • IRIDIUM-193 isotope is used for Platinum-195m radionuclide (radioisotope) production (can be used in life science for healthcare and medical applications and pharmaceuticals industries);
  • IRIDIUM-193 isotope is used for geological studies;

Iridium-193 isotope is available to order from BuyIsotope.com Iridium-193 metal chemical form. Please contact us via request a Iridium-193 isotope quote BuyIsotope.com to order Iridium-193 isotope to get Iridium-193 price to buy Iridium-193 isotope.

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Iridium metal Safety Data Sheet (SDS) - Download pdf file
Download Iridium metal SDS

Properties Of Iridium Isotopes:

PropertyIRIDIUM-191IRIDIUM-193
Neutron Number (N)114116
Atomic Number / Proton Number (Z)7777
Mass Number / Nucleon Number (A)191193
Natural Abundance (%)0.3730.627
Atomic Mass (Da)190.96059192.96292
Relative Isotopic Mass190.96059192.96292
Spin1.51.5
Quadrupole Moment0.8160.751
g-factor (g value)0.10050.1091
Half-life
Group99
Period66
Electron Configuration Blockdd
Melting Point (K)26832683
Boiling Point (K)44034403
Specific Heat0.1330.133
Heat of Formation669669
Thermal Conductivity147147
Dipole Polarizability 5454
Electron Affinity (kJ/mole)1.56381.5638
Electronegativity (Pauling scale)2.22.2
Atomic Radius (pm)136136
Covalent Radius (pm)135135
VDW Radius (pm)236236
Lattice Constant3.843.84
Crystal StructureFCCFCC
Jmol color#175487#175487

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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