Published January 2006 | Version v1
Journal article Metadata-only

Solvent extraction of lead using a nitrobenzene solution of strontium dicarbollylcobaltate in the presence of polyethylene glycol PEG 400

Creators

  • 1. West Bohemia Univ., Pilsen (Czech Republic). Faculty of Applied Sciences
  • 2. Prague Instiute of Chemical Technolgy (Czech Republic)

Description

From extraction experiments and γ-activity measurements, the extraction constant corresponding to the equilibrium Pb2+ (aq)+SrL2+ (nb) ↔ PbL2+ (nb)+Sr2+ (aq) taking place in the two-phase water-nitrobenzene system (L = PEG 400; aq aqueous phase, nb = nitrobenzene phase) was evaluated as logKex(Pb2+, SrL2+) = 2.0 ± 0.1. Further, the stability constant of the PEG 400 - lead complex in nitrobenzene saturated with water was calculated for a temperature of 25 deg C: logβnb(PbL2+) = 12.9 ± 0.1. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
267
Journal Issue
1
Journal Page Range
p. 233-235
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
37036327
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CHEMICAL REACTION KINETICS; COBALT COMPOUNDS; LEAD; LEAD COMPLEXES; NITROBENZENE; POLYETHYLENE GLYCOLS; SOLVENT EXTRACTION; STABILITY; STRONTIUM 85; STRONTIUM COMPOUNDS
Descriptors DEC
ALCOHOLS; ALKALINE EARTH ISOTOPES; ALKALINE EARTH METAL COMPOUNDS; BETA DECAY RADIOISOTOPES; COMPLEXES; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; EVEN-ODD NUCLEI; EXTRACTION; GLYCOLS; HOURS LIVING RADIOISOTOPES; HYDROXY COMPOUNDS; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; KINETICS; METALS; NITRO COMPOUNDS; NUCLEI; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC POLYMERS; POLYMERS; RADIOISOTOPES; REACTION KINETICS; SEPARATION PROCESSES; STRONTIUM ISOTOPES; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
10 refs.