| 三氟化钴具体实验步骤如下 |
| 添加时间：2019/8/21 9:36:58 浏览次数： |
| 具体实验步骤如下： The specific experimental steps are as follows: 将盛有CoF2的石英舟放入石英反应管中，从反应管的一端通入F2，反应开始进行得很慢，当将反应管加热至75℃左右时，由于反应放热，反应就猛烈起来，温度慢慢升至200℃，产物在F2气流中冷却； A quartz boat containing CoF2 is put into a quartz reactor tube, and the reaction begins very slowly. When the reactor tube is heated to about 75 C, the reaction becomes fierce due to the exothermic reaction. The temperature rises slowly to 200 C, and the product is cooled in the F2 gas stream. 最后用氮气流驱除多余的F2。氟化反应与在前面相同的装置中进行，石英舟中为无水CoCl2或Co2O3，将反应管从室温开始渐渐升温至300℃，保持此温度直至反应管的末端有F2放出为止，然后用干燥的氮气将装置中多余的F2驱除出去。 [1] Finally, the excess F2 is removed by nitrogen flow. The fluorination reaction is carried out in the same device as before. Anhydrous CoCl2 or Co2O3 is in the quartz boat. The reaction tube is gradually heated from room temperature to 300 C, and the temperature is maintained until F2 is released at the end of the reaction tube. Then the excess F2 in the device is expelled with dry nitrogen gas. [1] |
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