Preparation and characterization of potassium copper nickel hexacyanoferrate(II) as an ion exchanger for cesium

  • Malik M. Ishfaq
  • H. M. A. Karim
  • M. A. Khan


Potassium copper nickel hexacyanoferrate(II) [KCNF] was prepared by treating potassium nickel hexacyanoferrate(II) with copper nitrate solution in 0.1M HNO3. The resulting material was dried at various temperatures. Chemical analysis, i.r., thermal decomposition and surface property measurements were used to characterize the material. The adsorption of cesium from aqueous solutions on KCNF was investigated and optimized as a function of equilibration time and pH. The material dried at 110°C was found to be fairly stable in dilute acids, salt solutions, high doses of gamma-radiation and at high temperature. It also showed better surface properties and a high value of ion exchange capacity (2.25 mmol·g−1) for cesium.


Thermal Decomposition Cesium Surface Property Exchange Capacity Equilibration Time 
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Copyright information

© Akadùmiai Kiadó 1992

Authors and Affiliations

  • Malik M. Ishfaq
    • 1
  • H. M. A. Karim
    • 1
  • M. A. Khan
    • 2
  1. 1.Nuclear Chemistry DivisionPakistan Institute of Nuclear Science and TechnologyIslamabad(Pakistan)
  2. 2.Institute of ChemistryUniversity of the PunjabLahore(Pakistan)

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