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Antimony Isotopes

Stabel Antimony Isotopes - Sb Isotopes
Nominal mass Accurate
% Natural abundance Chemical
Enrichment available %

121 Sb 120.9038212 (29) 57.21 (5) metal 99+

123 Sb 122.9042160 (24) 42.79 (5) metal, sulphate 93 - 99+
Two Antimony Isotopes are used for the production of medical radioisotopes. Sb-121 can be used for the production of I-124, although this medical radioisotope is usually produced via Te-124. Sb-121 and Sb-123 can both be used for the production of I-123, although the most common production route is via Xe-124 or Te-123.
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