24小时热门版块排行榜    

查看: 524  |  回复: 3
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

我的工大

铁杆木虫 (正式写手)

[求助] 本人用勃姆石固载金属卟啉,氢氧化铝该如何将其加入无水乙醇.是无水还是含水?已有1人参与

这是文献中制备固载金属卟啉的一段话
Under stirring, 0.7 mol of NH4OH diluted with distilled water was slowly added to 400 ml of a 0.5 M aluminium chloride solution. After holding the white aluminium hydroxide precipitate for 0.5 h, it was filtered and washed with distilled water. The precipitate was then added to 250 ml of ethanol in a three-neck flask with stirring at high speed for 0.5 h. Subsequently, 10 mg of CoII TPP dissolved in absolute ethanol was slowly added into the
above suspension, and the mixture was heated to 50℃ with rapid stirring for 5 h. The pink suspension was filtered and washed with
bulk distilled water and the pink cake was dried at 0.10 MPa and 170℃ for 5.5 h. As a result, 14.9 g of the pink-supported catalyst,
CoII TPP/BM, was obtained. The amount of CoII TPP supported per gram of boehmite was 9.53 *10-7 mol,我问一下高手,这个实验过程中制备完氢氧化铝,将新制的氢氧化铝加入到无水乙醇中这个过程是应该无水还是有水啊?如果是无水是抽滤完,干燥吗?我觉得单纯的干燥,可能氢氧化铝胶体活性是不是会下降?
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

青若

至尊木虫 (文坛精英)

我的工大

铁杆木虫 (正式写手)

青若

至尊木虫 (文坛精英)

【答案】应助回帖


感谢参与,应助指数 +1
我的工大: 金币+1, 有帮助, 不知道你做过勃姆石固载没有? 2015-03-24 06:41:30
信息提示
请填处理意见