Some Complex Compounds of Neptunium (IV) and Related Ions
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Tomitaro Ishimori
Summary
The phenylarsonate, oxalate, mandelate and ethylenediaminetetraacetate of neptunium (IV) were radiochemically surveyed by the solvent extraction technique. An equation given by SCHUBERT as well as another one evolved by ISHIMORI for the composition of complex compounds, were applied to the measured distribution ratios in a di-(2-ethyl-hexyl)-phosphoric acid-hydrochloric acid system containing a complexing agent. The determined molar ratios of the complexing agents: neptunium (IV) were 2, 4 and 1 for phenylarsonate, oxalate and ethylenediaminetetraacetate, respectively. No mandelate of neptunium (IV) was observed in the acidity range studied. The dissociation constants for most of the complex compounds were calculated.
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- A 2.8 Hour Rhenium Isotope
- Über die Herstellung von Si32 durch einen (t,p)-Prozeß
- Some Complex Compounds of Neptunium (IV) and Related Ions
- Mutual Separation of Uranium, Plutonium and Fission Products by Gradient Multistage Extraction
- Mechanisms for the Reactions Following Radiative Neutron Capture in Liquid Organic Halides
- Die aktivierungsanalytische Silberbestimmung in Stoffen mit hohem Cadmiumgehalt
- Trennung natürlicher Radionuklide mittels Ammoniummolybdatophosphat auf Papierträger
- Neues Verfahren zur Isolierung von 223Francium an synthetischem Ultramarin durch Ausnutzung eines Siebeffektes
- Strahlenchemische Veränderungen in Polymeren
- Phase Independence of Major Reaction Mechanisms of Recoil Carbon Atoms1
- KURZE MITTEILUNGEN
- Coprecipitation of Actinides with the Peroxides of other Actinides
Articles in the same Issue
- Geleitwort
- A 2.8 Hour Rhenium Isotope
- Über die Herstellung von Si32 durch einen (t,p)-Prozeß
- Some Complex Compounds of Neptunium (IV) and Related Ions
- Mutual Separation of Uranium, Plutonium and Fission Products by Gradient Multistage Extraction
- Mechanisms for the Reactions Following Radiative Neutron Capture in Liquid Organic Halides
- Die aktivierungsanalytische Silberbestimmung in Stoffen mit hohem Cadmiumgehalt
- Trennung natürlicher Radionuklide mittels Ammoniummolybdatophosphat auf Papierträger
- Neues Verfahren zur Isolierung von 223Francium an synthetischem Ultramarin durch Ausnutzung eines Siebeffektes
- Strahlenchemische Veränderungen in Polymeren
- Phase Independence of Major Reaction Mechanisms of Recoil Carbon Atoms1
- KURZE MITTEILUNGEN
- Coprecipitation of Actinides with the Peroxides of other Actinides
