Hafnium-177 Isotope Information and Examples of Enriched Hafnium-177 Applications:

Hafnium-177 isotope (Hf-177 isotope, 177Hf isotope)

  • Hafnium-177 isotope is used for gamma ray spectrometry;

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Hafnium-177 oxide Safety Data Sheet (SDS) - Download pdf file
Download Hafnium-177 oxide SDS

Properties Of Hafnium-177 Isotope:

PropertyHAFNIUM-177
Neutron Number (N)105
Atomic Number / Proton Number (Z)72
Mass Number / Nucleon Number (A)177
Natural Abundance (%)0.186
Atomic Mass (Da)176.94323
Relative Isotopic Mass176.94323
Spin3.5
Quadrupole Moment3.37
g-factor (g value)0.2267
Half-life
Group4
Period6
Electron Configuration Blockd
Melting Point (K)2503
Boiling Point (K)5470
Specific Heat0.146
Heat of Formation618.4
Thermal Conductivity23
Dipole Polarizability 103
Electron Affinity (kJ/mole)0.014
Electronegativity (Pauling scale)1.3
Atomic Radius (pm)167
Covalent Radius (pm)155
VDW Radius (pm)253
Lattice Constant3.2
Crystal StructureHEX
Jmol color#4dc2ff

Hafnium Information

Silvery lustrous metallic transition element. Used in tungsten alloys in filaments and electrodes, also acts as a neutron absorber. First reported by Urbain in 1911, existence was finally established in 1923 by D. Coster, G.C. de Hevesy in 1923.

Used in reactor control rods because of its ability to absorb neutrons.

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