86Kr Isotope Information and Examples of Enriched 86Kr Applications:

Krypton-86 isotope (Kr-86 isotope, 86Kr isotope)

  • 86Kr isotope is used for mass-spectrometer calibration;
  • 86Kr isotope is used for laser frequency stabilization;
  • 86Kr isotope is used for krypton ion laser development;
  • 86Kr isotope is used for detection of noble gases through isotope dilution analysis;
  • 86Kr isotope is used for gas flow tracing;
  • 86Kr isotope is used for studies of infra-red image amplifiers;

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86Kr gas Safety Data Sheet (SDS) - Download pdf file
Download 86Kr gas SDS

Properties Of 86Kr Isotope:

Neutron Number (N)50
Atomic Number / Proton Number (Z)36
Mass Number / Nucleon Number (A)86
Natural Abundance (%)0.17279
Atomic Mass (Da)85.91061063
Relative Isotopic Mass85.91061063
Quadrupole Moment0
g-factor (g value)0
Electron Configuration Blockp
Melting Point (K)116.6
Boiling Point (K)120.85
Specific Heat0.247
Heat of Formation
Thermal Conductivity0.0095
Dipole Polarizability 16.78
Electron Affinity (kJ/mole)
Electronegativity (Pauling scale)
Atomic Radius (pm)
Covalent Radius (pm)
VDW Radius (pm)215
Lattice Constant5.72
Crystal StructureFCC
Jmol color#5cb8d1

Krypton Information

Colorless gaseous element, belongs to the noble gases. Occurs in the air, 0.0001% by volume. It can be extracted from liquid air by fractional distillation. Generally not isolated, but used with other inert gases in fluorescent lamps. Five natural isotopes, and five radioactive isotopes. Kr-85, the most stable radioactive isotope, has a half-life of 10.76 years and is produced in fission reactors. Practically inert, though known to form compounds with Fluorine.

Used in lighting products. Some is used as inert filler-gas in incandescent bulbs. Some is mixed with argon in fluorescent lamps. The most important use is in flashing stroboscopic lamps that outline airport runways.

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