Antimony-121 Isotope

Antimony-121 isotope Antimony-121 enriched Antimony-121 abundance Antimony-121 Atomic mass Antimony-121

Antimony-121 Isotope Information and Examples of Enriched Antimony-121 Applications:

Antimony-121 isotope (Sb-121 isotope, 121Sb isotope)

  • Antimony-121 isotope is used for Iodine-124 positron-emitting radionuclide (radioisotope) production (can be used in life science for healthcare and medical applications and pharmaceuticals industries);
  • Antimony-121 isotope is used for Antimony-122 radionuclide (radioisotope) production (can be used for gamma ray and neutron sources);
  • Antimony-121 isotope is used for chemical research;

Antimony-121 isotope is available to order from in Antimony-121 metal chemical form and Antimony-121 oxide chemical form. Please contact us via request a Antimony-121 quote to order Antimony-121 isotope to get Antimony-121 price to buy Antimony-121 isotope.

back to Antimony isotopes list

Antimony-121 metal Safety Data Sheet (SDS) - Download pdf file
Download Antimony-121 Metal SDS

Properties of Antimony-121 Isotope:

Neutron Number (N)70
Atomic Number / Proton Number (Z)51
Mass Number / Nucleon Number (A)121
Natural Abundance (%)0.5721
Atomic Mass (Da)120.90381
Relative Isotopic Mass120.90381
Quadrupole Moment-0.543
g-factor (g value)1.3454
Electron Configuration Blockp
Melting Point (K)903.9
Boiling Point (K)1908
Specific Heat0.205
Heat of Formation264.4
Thermal Conductivity24.43
Dipole Polarizability 43
Electron Affinity (kJ/mole)1.046
Electronegativity (Pauling scale)2.05
Atomic Radius (pm)159
Covalent Radius (pm)145
VDW Radius (pm)252
Lattice Constant4.51
Crystal StructureRHL
Jmol color#9e63b5

Antimony Information

Element of group 15. Multiple allotropic forms. The stable form of antimony is a blue-white metal. Yellow and black antimony are unstable non-metals. Used in flame-proofing, paints, ceramics, enamels, and rubber. Attacked by oxidizing acids and halogens. First reported by Tholden in 1450.

It is alloyed with other metals to increase their hardness. Also in the manufacture of a few special types of semiconductor devices. Also in plastics and chemicals. A few kinds of over-the-counter cold and flu remedies use antimony compounds.

back to Antimony isotopes list