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The decatungstomolybdoniobogermanic heteropoly acid H 5 [GeW 10 MoNbO 40 ].20H 2 O has been prepared for the first time. The optimal proportion of the solutions of the component and the pH of the synthesis reaction are given. The product was characterized by chemical analysis, conductometric and potentiometric titration, IR, UV, XRD, 183 ...
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