диоксид урана, пероксид химические свойства, назначение, производство
Методы производства
A boiling 10% solution of uranyl nitrate is treated dropwise with 30% H2O2. The resulting amorphous, white precipitate is filtered on the finest filter possible (membrane or Millipore filter) and washed thoroughly with boiling water. The peroxide, a bright sulfur-yellow after filtration, is first dried in the air on a clay plate, then at 100°C to constant weight, and stored in a vacuum over P2O5.
Reaction of (NH4)2[UO2(C2O4)2] ? 3 H2O with H2O2 yields crystalline, nonhygroscopic UO4 ? 2 H2O, which is converted to the dihydrate by storing in vacuum over P2O5.
Общее описание
Pale yellow crystalline solid. Denser than water.
Профиль реактивности
uranium dioxideperoxide reacts rapidly with liquid bromine trifluoride.
Угроза здоровью
INHALATION: Radiation injuries. EYES: Mild irritation. INGESTION: Injury to capillaries, tubular and glomerular nephritis, hepatitis, glycosuria and acidosis.
Пожароопасность
Behavior in Fire: Decomposes to form U 2 O 7 then to UO 3 and oxygen.
диоксид урана, пероксид препаратная продукция и сырье
сырьё
препарат