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Zinc Isotopes |
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| Stable Zinc Isotopes - Zn Isotopes | |||||
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| 64 Zn | 63.9291448 (19) | 48.6 (60) | metal, oxide | 75 - 99+ |
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| 66 Zn | metal, oxide, carbonate | 62 - 99 | ||
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| 67 Zn | 66.9271291 (17) | 4.1 (13) | metal, oxide | 78 - 97 |
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| 68 Zn | 67.9248459 (18) | 18.8 (51) | metal, oxide, sulphate | 37 - 99+ |
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| 70 Zn | 69.925325 (4) | 0.6 (3) | metal, oxide | 64 - 95+ |
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Zinc Isotopes are used extensively in both industrial and medical applications. Depleted Zn-64 is added to the cooling water of nuclear reactors in the form of oxide or acetate to prevent stress corrosion cracking. It also reduces the release of (stable) Co-59 into the cooling water by forming a thin spinel layer on the Co containing steel surfaces. Neutron irradiation of Co-59 will result in the formation of Co-60, a radioisotope which emits high energy gamma radiation and is a major contributor to the dose rate of personnel working in the reactor. Enriched Zn-67 is often used in biological research into the uptake of Zn in the human body. It can also be used for the production of radioactive Ga-67 in smaller cyclotrons. However, by far most Ga-67 is made from Zn-68. Zn-67, Zn-68 and Zn-70 can all be used for the production of the therapeutic isotope Cu-67. Zn-66 has been proposed as an alternative target for the production of Cu-64 and Ga-67. Finally Zn-70 is also used in biological research and in research into super-heavy elements. |
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