The ternary undecatungstozincoaluminic heteropoly acid H7 [Al（H2O）ZnW11O39]·12H2O was prepared by the ion exchanging-cooling method. The optimal proportion of solutions of the component elements and the pH of the synthesis reaction were given. The product was characterized by chemical analysis, potentiometric titration, IR, UV, XRD and TG-DTA. AC impedance measurement results show that its proton conductivity is 1.37 ?á 10￡¨-4￡（c）S/cm at
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机译：4-（（（Phenoxyl）Thyo）Phenoxyl Acids and Analogues）-（（（Phenoxyl）Thyo）Phenoxyl Acids and Analogues）-（（（Phenoxyl）Thyo）Phenoxyl Acids and Analogues）-（（（Phenoxyl）Thyo）Phenoxyl Acids and Analogues）-（（（Phenoxyl）Thyo）Phenoxyl Acids and Analogues）-（（（Phenoxyl）Thyo）Phenoxyl Acids and Analogues）-（（（Phenoxyl）Thyo）Phenoxyl Acids and Analogues）-（（（Phenoxyl）Thyo）Phenoxyl Acids and Analogues）-（（（Phenoxyl）Thyo）Phenoxyl Acids and Analogues）-（（（Phenoxyl）Thyo）Phenoxyl Acids and Analogues）-（（苯氧基））
