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Osmium Isotopes

Stable Osmium Isotopes - Os Isotopes
Nominal mass Accurate
mass
% Natural abundance Chemical
form
Enrichment available %

184 Os 183.952488 (4) 0.02 (1) metal 1+

186 Os 185.953830 (4) 1.59 (3) metal 38+

187 Os 186.955741 (3) 1.96 (2) metal 99+

188 Os 187.955830 (3) 13.24 (8) metal 66+

189 Os 188.958137 (4) 16.15 (5) metal 79+

190 Os 189.958436 (4) 26.26 (2) metal 92 - 99+

192 Os 191.961467 (4) 40.78 (19) metal 99+
 
Osmium Isotopes are used for the production of radioisotopes and in scientific experiments. Os-192 can be used for the production of the medical radioisotope Pt-195m. Os-184 is used for the production of the radioisotope Os-185. Os-191 can be used for the production of the radioisotopes Os-192. Os-190 has been used as a tracer to determine Os abundance in meteorites using isotope dilution ICP-MS. Finally, Os-189 has been used to experiment with nuclear excitation by electronic transition.