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


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 .


Physical Chemistry Inorganic Chemistry Active Carbon Salt Concentration Salt Solution 
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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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