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Protactinium-233 occurs as a result of the decay of thorium-233 as part of the chain of events necessary to produce uranium-233 by neutron irradiation of thorium-232. It is an undesired intermediate product in thorium-based nuclear reactors , and is therefore removed from the active zone of the reactor during the breeding process.
The most stable isotope is 231 Pa with a half-life of 32,760 years, 233 Pa with a half-life of 26.967 days, and 230 Pa with a half-life of 17.4 days. All of the remaining radioactive isotopes have half-lives less than 1.6 days, and the majority of these have half-lives less than 1.8 seconds.
Protactinyl nitrate, protactinium(V) oxynitrate, or erroneously known as protactinium nitrate, is a radioactive chemical compound with the formula PaO(NO 3) 3 ·xH 2 O (1.5 ≤ x ≤ 4). It is a white solid that readily hydrolyzes to protactinium(V) oxide in moist air. This compound is a common commercial source of protactinium. [2]
233 Th is an isotope of thorium that decays into protactinium-233 through beta decay. It has a half-life of 21.83 minutes. [ 1 ] Traces occur in nature as the result of natural neutron activation of 232 Th. [ 58 ]
Create account; Log in; Pages for logged out editors learn more. Contributions; Talk; Contents ... protactinium-233: 26.975 2.3306 curium-240: 27 2.3 chromium-51: 27.7025
Pa and 233 U. [17] On a closed cycle, 233 U and 231 Pa can be reprocessed. 231 Pa is also considered an excellent burnable poison absorber in light water reactors. [23] Another challenge associated with the thorium fuel cycle is the comparatively long interval over which 232 Th breeds to 233 U. The half-life of 233 Pa
Uranium-232 (232 U) is an isotope of uranium.It has a half-life of around 69 years and is a side product in the thorium cycle.It has been cited as an obstacle to nuclear proliferation using 233 U as the fissile material, because the intense gamma radiation emitted by 208 Tl (a daughter of 232 U, produced relatively quickly) makes the 233 U contaminated with it more difficult to handle.
Create account; Log in; Pages for logged out editors learn more. ... Protactinium nitride is a binary inorganic compound of protactinium and nitrogen with the ...