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Zirconium Isotopes |
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| Stable Zirconium Isotopes - Zr Isotopes | |||||
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| 90 Zr | 89.9047026 (26) | 51.45 (2) | oxide | 84 - 99+ |
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| 91 Zr | 90.9056439 (26) | 11.22 (2) | oxide | 44 - 96+ |
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| 92 Zr | 91.9050386 (26) | 17.15 (1) | oxide, metal | 72 - 97+ |
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| 94 Zr | 93.9063148 (28) | 17.38 (2) | oxide | 80 - 98+ |
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| 96 Zr | 95.908275 (4) | 2.80 (1) | oxide | 53 - 89+ |
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Zirconium has five stable isotopes, of which a few are used for the production of radioisotopes. Although radioactive Zr-95 is a fission product, it can also produced by neutron irradiation of Zr-94. Zr-96 has been used for the production of the radioisotope Zr-97. Zr-90 can be used for the production of the PET isotope Nb-90. Finally, Zr-90 has been proposed for cladding in nuclear fuel. The use of Zr-90 would lower even further the already low neutron absorption cross section of natural Zr that is currently used as fuel cladding.
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