Properties of nitric acid palladium solutions with a high metal concentration |
| |
| Authors: | A. B. Venediktov S. V. Korenev S. P. Khranenko S. V. Tkachev P. E. Plyusnin S. N. Mamonov L. V. Ivanova V. A. Vostrikov |
| |
| Affiliation: | (1) Nikolaev Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk, Russia;(2) Gulidov Krasnoyarsk Factory of Nonferrous Metals, Open Joint-Stock Company, Krasnoyarsk, Russia |
| |
| Abstract: | Nitric acid solutions (c Pd up to 3.2 M) with variable HNO3 concentration were studied by electronic spectroscopy, 14N and 17O NMR, acid-base titration, gravimetry, and other methods. Solid phases that precipitated on storing these solutions were studied by X-ray phase analysis, thermogravimetry, and IR spectroscopy. The conditions for stability of particular Pd(II) species were determined, and specific features of aging of such highly concentrated palladium solutions were revealed. A procedure for palladium isolation as [Pd(NH3)4](NO3)2 from nitric acid solutions in 98% yield was developed. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
