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Journal of Radioanalytical and Nuclear Chemistry

, Volume 152, Issue 2, pp 381–390 | Cite as

Adsorption of pertechnetate ion on active carbon from acids and their salt solutions

  • K. Ito
  • K. Akiba
Article

Abstract

The adsorbability of pertechnetate ion (TcO 4 ) reached 96% for an active carbon at the 0.1 g/50 ml concentration level, increasing with diminution of acid and its salt concentrations, and depending on the type of anions present. With constant anion concentration, TcO 4 adsorbability rose with decreasing pH in the acidic region, followed in the region around neutrality by a plateau, and in the basic region by an appreciable decline of TcO 4 adsorbability. In the acidic region, part of once-adsorbed TcO 4 appeared to be displaced by other anions. Reversibility was noted between the adsorption and desorption of TcO 4 .

Keywords

Physical Chemistry Inorganic Chemistry Active Carbon Salt Concentration Salt Solution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Akadémiai Kiadó 1991

Authors and Affiliations

  • K. Ito
    • 1
  • K. Akiba
    • 1
  1. 1.Research Institute of Mineral Dressing and MetallurgyTohoku UniversitySendai(Japan)

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