Published 2000 | Version v1
Journal article Metadata-only

Coprecipitation of transuranium elements from alkaline solutions by the method of appearing reagents. 18. Coprecipitation of Np(5) with Cr(3) hydroxides

Creators

  • 1. RAN, Inst. Fizicheskoj Khimii, Moscow (Russian Federation)

Description

Coprecipitation of Np(5) with Cr(3) hydroxide is investigated in the range of pH 9.3 up to 10 mol/l OH- by radiometric method (237Np on γ- and 239Np on β-activity). Purification factors of solutions take values 10-100 in 0.02-2 mol/l solutions of NaOH. In ammonium and strong alkaline solutions efficiency of coprecipitation is very low

Abstract (Russian)

Радиометрическим методом (237Np по γ- и 239Np по β-активности) исследовано соосаждение Np(5) с гидроксидом Cr(3) в диапазоне от pH 9.3 до 10 моль/л OH-. Коэффициенты очистки растворов достигают величины 10-100 в 0.02-2 моль/л NaOH. В аммиачных и крепких щелочных растворах эффективность соосаждения весьма низка

Additional details

Additional titles

Original title (Russian)
Соосаждение трансурановых элементов из щелочных растворов методом возникауыщих реагентов. 18. Соосаждение Нп(5) с гидроксидом Cр(3)

Publishing Information

Journal Title
Radiokhimiya
Journal Volume
42
Journal Issue
2
Journal Page Range
p. 138-139
ISSN
0033-8311
CODEN
RADKAU

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
32008740
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
AMMONIUM HYDROXIDES; CHROMIUM HYDROXIDES; CONCENTRATION RATIO; COPRECIPITATION; DISTRIBUTION FUNCTIONS; NEPTUNIUM COMPOUNDS; PH VALUE; PRECIPITATION; SODIUM HYDROXIDES
Descriptors DEC
ACTINIDE COMPOUNDS; ALKALI METAL COMPOUNDS; AMMONIUM COMPOUNDS; CHROMIUM COMPOUNDS; FUNCTIONS; HYDROGEN COMPOUNDS; HYDROXIDES; OXYGEN COMPOUNDS; PRECIPITATION; SEPARATION PROCESSES; SODIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSURANIUM COMPOUNDS

Optional Information

Notes
5 refs., 2 tabs.