中文摘要：

Dawson结构多酸化合物K6[P2W18O62]·14H2O的制备及性质表征实验，通过水溶液回流方法制备，利用红外光谱、热重分析和电化学方法表征其性质。该实验中采用了经典的多酸化合物制备方法，不但产物具有良好的电致变色性质，而且将多酸化学研究的方法和思路，化合物制备、测试、数据分析等训练融入到“多酸化学”实验课的教学中，加深了学生对多酸化学相关知识点的理解，探索提升无机化学研究生科研素质的实验教学。

英文摘要：

This paper introduced an experiment of the Dawson-type polyoxometalate K6[P2W18O62]·14H2O, which was synthesized in aqueous solution and characterized by IR spec- troscopy, thermal gravimetric analysis, UV-vis spectrum, and Cyclic Voltage. This experimentnot only had a classical preparation method and the material ty, but also integrated study method, preparation, testing, the polyoxometalate course, which indicated that it was an chemistry graduate students＇ qualities. data analysis and other training into effective way for enhancing inorganic