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[求助]
POM材料的合成--K6P2W18O62*14H2O
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例如上述常见的POM材料，文献中合成方法如下： A sample of Na2WO4 2H2O (260 g; 0.79 mol) dissolved in 300 mL Millipore water was acidified by fractional addition of HCl 4M (200 mL; 08 mol) under vigourous stirring. When the cloudy solution becomes limpid again, H3PO4 2M (130 mL; 0.26 mol) and HCl 4M (100 mL; 0.4 mol) were added simultaneously. The pale yellow and limpid solution was refluxed for at least 24 h. After this reaction time, the yellow colour of the solution had become more intense. This solution was allowed to cool to room temperature and was then treated with 150 g KCl. The precipitate which appeared was filtered off and air-dried by aspiration. 两个问题：1回流24小时是在什么温度下呢？2用KCl怎么处理？ 有做过相关合成的大神还有什么梗简单的合成方法呢？ |
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