K-40 Isotope Information and Examples of Enriched K-40 Applications:

Potassium-40 isotope (K-40 isotope, 40K isotope)

  • K-40 isotope is used for studies of biological impact of natural radiation and other environmental studies;

K-40 isotope is available to order from BuyIsotope.com in K-40 Chloride chemical form. Please contact us via request a K-40 quote BuyIsotope.com to order K-40 isotope to get K-40 price to buy K-40 isotope.

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K-40 chloride Safety Data Sheet (SDS) - Download pdf file
Download K-40 chloride SDS

Properties Of K-40 Isotope:

PropertyK-40
Neutron Number (N)21
Atomic Number / Proton Number (Z)19
Mass Number / Nucleon Number (A)40
Natural Abundance (%)0.000117
Atomic Mass (Da)39.9639982
Relative Isotopic Mass39.9639982
Spin4
Quadrupole Moment-0.073
g-factor (g value)-0.324525
Half-life1248000000
Group1
Period4
Electron Configuration Blocks
Melting Point (K)336.8
Boiling Point (K)1047
Specific Heat0.753
Heat of Formation89
Thermal Conductivity79
Dipole Polarizability 289.7
Electron Affinity (kJ/mole)0.50147
Electronegativity (Pauling scale)0.82
Atomic Radius (pm)235
Covalent Radius (pm)220
VDW Radius (pm)309
Lattice Constant5.23
Crystal StructureBCC
Jmol color#8f40d4

Potassium Information

Soft silvery metallic element belonging to group 1 of the periodic table (alkali metals). Occurs naturally in seawater and a many minerals. Highly reactive, chemically, it resembles sodium in its behavior and compounds. Discovered by Sir Humphry Davy in 1807.

Used as potash in making glass & soap. Also as saltpeter, potassium nitrate (KNO3) to make explosives and to color fireworks in mauve. Formerly called kalium (K). Vital to function of nerve and muscle tissures.

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