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Sorption of CH3 131I from water vapor-air medium on porous inorganic sorbents containing triethylenediamine and d element nitrates

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Abstract

Sorption of CH3 131I from a water vapor-air medium on porous inorganic sorbents based on silica gel of KSKG grade and containing triethylenediamine (CH2-CH2)3N2 and d element nitrates was studied. The sorbents prepared by impregnation with (CH2-CH2)3N2 and Zn, Ni, and Cu nitrates from aqueous solution recover CH3 131I from a water vapor-air flow poorly (degree of recovery <10%). Calcination of the sorbents at temperatures exceeding 250°C does not noticeably affect their sorption power. Heating of the complex Ag(NO3)(OH)·(CH2-CH2)3N2H to 160°C causes its exothermic decomposition with a large heat release and formation of metallic silver. Thermal decomposition of the complex of Cu2+ with (CH2-CH2)3N2, synthesized from an aqueous solution at the molar ratio Cu(NO3)2: (CH2-CH2)3N2 = 1: 2, occurs similarly.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia

    S. A. Kulyukhin, L. V. Mizina, E. P. Krasavina & I. A. Rumer

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  1. S. A. Kulyukhin
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  2. L. V. Mizina
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  3. E. P. Krasavina
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  4. I. A. Rumer
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Correspondence to S. A. Kulyukhin.

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Original Russian Text © S.A. Kulyukhin, L.V. Mizina, E.P. Krasavina, I.A. Rumer, 2009, published in Radiokhimiya, 2009, Vol. 51, No. 6, pp. 528–535.

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Kulyukhin, S.A., Mizina, L.V., Krasavina, E.P. et al. Sorption of CH3 131I from water vapor-air medium on porous inorganic sorbents containing triethylenediamine and d element nitrates. Radiochemistry 51, 606–615 (2009). https://doi.org/10.1134/S1066362209060095

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  • DOI: https://doi.org/10.1134/S1066362209060095

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