Adsorption characteristics of radionuclides on nickel hexacyanoferrate(ii) |
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Authors: | Shoichi Kawamura Sadao Shibata Katsumi Kurotaki |
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Institution: | Chemistry Division, National Institute of Radiological Sciences, 9-1, 4-Chome, Anagawa, Chiba-shi Japan |
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Abstract: | The composition of nickel hexacyanoferrate(II) complexes depends on the ratios of sodium hexacyanoferrate(II) and nickel nitrate solutions mixed. The adsorption behavior of nickel hexacyanoferrate(II) is described; acid treatment of Ni2Fe(CN)6 accelerates the adsorption rate of cesium, but does not increase the adsorption capacity. The Ni—Cs exchange ratios of Ni2Fe(CN)6 are discussed. In concentrated salt solutions, the distribution coefficients of 59Fe, 60Co, 65Zn. 137Cs, 95Zr and 144Ce are determined together with those of 85Sr and 106Ru. A simple determination of 137Cs in sea water containing 59Fe, 60Co, 65Zn, 95Zr, 144Ce, 85Sr and 106Ru is described. |
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