CAS No.:

SAFETY PROFILE：
An extremely poisonous radioactive material. The permissible levels for plutonium are the lowest for any of the radioactive elements. This is occasioned by the concentration of plutonium directly on bone surfaces, rather than the more uniform bone distribution shown by other heavy elements. This increases the possibility of damage from equivalent activities of plutonium and has led to the adoption of the extremely low permissible levels given. Radiation Hazard: Artificial isotope ²³⁸Pu, T_0.5 = 86 Y, decays to radioactive ²³⁴U by alphas of 5.5 MeV. Artificial isotope ²³⁹Pu, T_0.5 = 24,000 Y decays to radioactive ²³⁵U by alphas of 5.1 MeV. Artificial isotope ²⁴⁰Up, T_0.5 = 6600 Y decays to radioactive ²³⁶Pu (Neptunium Series), T_0.5 = 13 Y decays to radioactive ²⁴¹Am by betas of 0.02 MeV. Artificial isotope ²⁴²Pu, T_0.5 = 3.8 × 10⁵ Y decays to radioactive ²³⁸U by alphas of 4.9 MeV. Ignites in air as low as 135°C. Explosive reaction with carbon tetrachloride. Particles exposed to air and moisture may ignite spontaneously. Corrosion products are usually pyrophoric. When heated to decomposition it emits toxic and radioactive fumes of Pu. See also PLUTONIUM COMPOUNDS.