List of Iridium Isotopes and Iridium Applications:

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

  • IRIDIUM-191 isotope is used for Iridium-192 (Ir-192 isotope, 192Ir isotope) radionuclide (radioisotope) production (can be used as a radiation source in radiographic testing and radiotherapy);
  • IRIDIUM-191 isotope is used for Osmium-189m (Os-189m isotope, 189mOs isotope) radionuclide (radioisotope) 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 in Iridium-191 metal (Ir) chemical form. Please contact us via request a Iridium-191 isotope quote BuyIsotope.com to order Iridium-191 isotope, to get Iridium-191 price and to buy Iridium-191 isotope.

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

  • IRIDIUM-193 isotope is used for Platinum-195m(Pt-195m isotope, 15mPt isotope) 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 in Iridium-193 metal (Ir) chemical form. Please contact us via request a Iridium-193 isotope quote BuyIsotope.com to order Iridium-193 isotope, to get Iridium-193 price and to buy Iridium-193 isotope.

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

Properties of Iridium Isotopes:

Properties of Iridium Isotopes:IRIDIUM-191IRIDIUM-193
Natural Abundance (%)37.362.7
Atomic Mass (Da)190.960594192.9629264
Relative Isotopic Mass190.960594192.9629264
Neutron Number (N)114116
Atomic Number (Z)7777
Mass Number (A)191193
Nucleon Number (A)191193
Proton Number (Z)7777
Half-lifeStableStable
Spin1.51.5
Quadrupole Moment0.8160.751
g-factor (g value)0.10050.1091
Group99
Period66
Electron Configuration Blockdd
Melting Point (K)27192719
Boiling Point (K)44034403
Specific Heat0.1330.133
Heat of Formation669669
Thermal Conductivity147147
Dipole Polarizability 5454
Electron Affinity (kJ/mole)1.564361.56436
Electronegativity (Pauling scale)2.22.2
Atomic Radius (pm)135.5b135.5b
Covalent Radius (pm)135135
VDW Radius (pm)236236
Lattice Constant3.843.84
Crystal StructureFCCFCC
Jmol color#175487#175487

Iridium Information

Iridium is a 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 2 natural stable isotopes of iridium. Totally iridium has 39 isotopes. The most stable being Ir-192 with a half-life of 73.83 days. Ir-192 decays into Platinum, while some radioisotopes decay into Osmium. Iridium is used in high temperature apparatus, electrical contacts. Iridium was discovered by Smithson Tennant in England in 1803. The name Iridium 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.

Iridium is used with osmium to tip gold pen points, to make crucible and special containers. It is used also to make alloys applied for standard weights and measures, and heat-resistant alloys. Iridium is used as hardening agent for platinum too.

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