Published March 1992 | Version v1
Journal article Metadata-only

The analysis of valences of Np using extraction method

Creators

  • 1. China Inst. of Atomic Energy, Beijing (China)

Description

The contents of the Np(IV), Np(V) or Np(VI) can be analysed by two kinds of extractant: TTA and TOPO. The aqueous phase containing the mixture of Np(IV), Np(V), and Np(VI) is controlled at 1.0 mol/1 HNO3. Np(IV) is only quantitatively extracted by TTA organic phase, Np(IV) and Np(VI) are all quantitatively extracted by TOPO organic phase. Np(V) is remained in the aqueous phase after TOPO extraction. So that, it is easy to calculate the content and percentage of Np(IV), Np(V) or Np(VI), respectively

Additional details

Publishing Information

Journal Title
Atomic Energy Science and Technology
Journal Volume
26
Journal Issue
2
Journal Page Range
p. 63-67.
ISSN
1000-6931
CODEN
YKJIEZ

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
24004851
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
NEPTUNIUM COMPOUNDS; RADIATION SOURCES; RADIOMETRIC ANALYSIS; SAMPLE PREPARATION; SOLVENT EXTRACTION; TOPO; TTA; VALENCE
Descriptors DEC
ACTINIDE COMPOUNDS; CHEMICAL ANALYSIS; HETEROCYCLIC COMPOUNDS; KETONES; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; ORGANIC SULFUR COMPOUNDS; PHOSPHINE OXIDES; QUANTITATIVE CHEMICAL ANALYSIS; SEPARATION PROCESSES; TRANSURANIUM COMPOUNDS