The Absorption Spectra of Uranyl Nitrate in Organic Solvents


Book Description

The absorption spectra of uranyl nitrate in a number of solvents and solvent mixtures have been measured. Differences among the spectra are explained in terms of a series of (hydrated, solvated) nitrate complexes, UO++, UO2NO3+, UO2(NO3)2 and UO2(NO3)3-, the relative concentrations of which depend on the nature of the solvent, its water content, and the concentration of added nitrates. In concentrated aqueous nitric acid the predominant species is the dinitrate complex, UO(NO3)2.




The Stability of Molecular Addition Compounds


Book Description

The stabilities of molecular addition compounds in an inert solvent formed from uranyl nitrate and various organic addenda have been investigated. Formation constants for addenda were determined by a solubility method using the system solid uranyl nitrate dehydrated in equilibrium with the addenda dissolved in an inert organic solvent.






















On the Formation of a Complex Compound of Uranyl Nitrate USSR.


Book Description

The study of the complex processes of formation in nonaqueous solutions. has both theoretical and practical aspects. It is known that the information of a complex compound may greatly affect the extraction of a given element by an organic solvent. There are numerous data in the, literature which indicate that the factor of uranium distribution changes with a change in the concentration of the NO3 ions during the aqueous phase /1 - 3/. This fact might connected -- at least to some extent-- with the formation of nitrate complexes of the uranyl ion /4.