Ir-191 Isotope

ir-191 isotope ir-191 enriched ir-191 abundance ir-191 atomic mass ir-191

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 (Ir-192 isotope, 192Ir isotope) radionuclide (radioisotope) production (can be used as a radiation source in radiographic testing and radiotherapy);
  • Ir-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);
  • Ir-191 isotope is used for geological studies;

Ir-191 isotope is available to order from BuyIsotope.com in Ir-191 metal (Ir) chemical form and in different physical forms: Enriched Ir-191 Disc, Enriched Ir-191 Pins and Enriched Ir-191 Targets. Please contact us via request a Ir-191 quote BuyIsotope.com to order Ir-191 isotope, to get Ir-191 price and to buy Ir-191 isotope.

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Ir-191 Safety Data Sheet (SDS) in metal form - Download pdf file
Download Ir-191 SDS in metal form

Properties of Ir-191 Isotope:

Properties of Ir-191 Isotope:IR-191
Natural Abundance (%)37.3
Atomic Mass (Da)190.960594
Relative Isotopic Mass190.960594
Neutron Number (N)114
Atomic Number (Z)77
Mass Number (A)191
Nucleon Number (A)191
Proton Number (Z)77
Half-lifeStable
Spin1.5
Quadrupole Moment0.816
g-factor (g value)0.1005
Group9
Period6
Electron Configuration Blockd
Melting Point (K)2719
Boiling Point (K)4403
Specific Heat0.133
Heat of Formation669
Thermal Conductivity147
Dipole Polarizability 54
Electron Affinity (kJ/mole)1.56436
Electronegativity (Pauling scale)2.2
Atomic Radius (pm)135.5b
Covalent Radius (pm)135
VDW Radius (pm)236
Lattice Constant3.84
Crystal StructureFCC
Jmol color#175487

Ir-191 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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FAQ about Ir-191 Isotope:

What is Ir-191 isotope natural abundance?
Answer: 37.300 %

What is atomic mass for Ir-191 isotope?
Answer: 190.96059 Da

What is isotopic mass for Ir-191 isotope?
Answer: 190.96059

How many neutrons does Ir-191 isotope have?
Answer: 114

How many protons does Ir-191 isotope have?
Answer: 77

How many electrons does Ir-191 isotope have?
Answer: 77

What is atomic number for Ir-191 isotope?
Answer: 77

Is Ir-191 isotope stable?
Answer: Yes

Is Ir-191 isotope radioactive?
Answer: No

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