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Hafnium Isotopes

Stable Hafnium Isotopes - Hf Isotopes

Nominal
Mass
Accurate
Mass
% Natural
Abundance
Chemical
Form
Enrichment
Available %

174 Hf 173.940044 (4) 0.16 (1) oxide 12 - 21+

176 Hf 175.941406 (4) 5.26 (7) oxide 65 - 84+

177 Hf 176.943217 (3) 18.60 (9) oxide 85 - 94+

178 Hf 177.943696 (3) 27.297 (7) oxide 92 - 96+

179 Hf 178.9458122 (30) 13.629 (5) oxide 73 - 90+

180 Hf 179.9465457 (30) 35.08 (16) oxide 94 - 99+

Hafnium Isotopes have several applications. Hf-180 is used for the production of the radioisotope Hf-181 while Hf-180 is used for the production of the radioisotope Ta-179, which has a medical application. The second isomer of Hf-178 (Hf-178m2) exhibits very high excitation energy and it has been suggested for use in gamma ray lasers.