Determination of Hydrogen Fluoride and Uranium (VI) in Crude Uranium Hexafluoride by Hydrolysis and Potentiometric Titration
| Autor: | Kimie Izawa, Haruka Shinohara, Kenji Motojima, Shigeo Tsujimura |
|---|---|
| Rok vydání: | 1967 |
| Předmět: |
Nuclear and High Energy Physics
Potentiometric titration Inorganic chemistry Alkali metal Hydrogen fluoride Equivalence point Glass electrode law.invention chemistry.chemical_compound Hydrofluoric acid Uranium hexafluoride Nuclear Energy and Engineering chemistry law Hydrogen peroxide Nuclear chemistry |
| Zdroj: | Journal of Nuclear Science and Technology. 4:482-487 |
| ISSN: | 1881-1248 0022-3131 |
| Popis: | A simple method for determining HF and U(VI) in a hydrolyzed solution of UF6 by alkalimetry is described. About 1 g of UF6 was taken in a polytrifluoromonochloroethylene tube, and hydrolyzed with about 50 ml of water in a closed polyethylene bottle. Using a glass electrode, HF in the hydrolyzed solution was titrated potentiometrically with an alkali solution, after the U(VI) had been masked with ammonium sulfate. When the equivalence point for the free acid was reached, hydrogen peroxide was added to the solution and the liberated acid equivalent to U(VI) was titrated with the same standard alkali solution. Assuming that the hydrolysis of UF6 takes place stoichiometrically, the accuracy of this method was roughly evaluated to be ±10% for the ratio of HF/UF6 and ± 1 % for the value of U(VI) in the range of 0 to 1 mole of HF per mole of UF6. |
| Databáze: | OpenAIRE |
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