Abstract
A new ion-exchanger having chemical formula [Me2NH2]3[Mo12O40S] and belonging to the class of Keggin type polyoxometalate was synthesized and characterized by single-crystal X-ray structure determination. The crystal of the exchanger is rhombohedral, space group R-3 with cell dimensions, a =16.504(18) Å, b =16.504(18)Å (1) Å, c =25.23(3)Å and α=90.00°, β=90.00°, γ=120.00° and Z =6, 3.284gcm−3. The compound behaves as an ion-exchanger and it is significantly stable towards thermal, chemical environments and total radiation dose of 35.0kGy. Radiochemical separation of the short-lived daughter carrier-free 9°Y (T1/2 =64.08h) from its long-lived parent 90Sr (T1/2 =29 a) using this material at pH 6.0 with 1.0% EDTA solution as an eluent.
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