Isotope name: iodine-131 Appearance: Transparent liquid Half-life: 8.04 days Emits: Beta and gamma radiation Used in: Diagnosis and treatment of thyroid conditions Decays to: xenon-131
Iodine-131 (I-131) is a radioactive isotope of iodine that is used in nuclear medicine procedures to diagnose and treat conditions of the thyroid, including hyperthyroidism and thyroid cancer.
I-131 is a fission product of uranium-235. During the Mo-99 production process, I-131 is extracted and purified, yielding a top quality product for sale to customers in bulk quantities.