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我的工大鐵桿木蟲(chóng) (正式寫(xiě)手)
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[求助]
本人用勃姆石固載金屬卟啉,氫氧化鋁該如何將其加入無(wú)水乙醇.是無(wú)水還是含水? 已有1人參與
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這是文獻(xiàn)中制備固載金屬卟啉的一段話 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,我問(wèn)一下高手,這個(gè)實(shí)驗(yàn)過(guò)程中制備完氫氧化鋁,將新制的氫氧化鋁加入到無(wú)水乙醇中這個(gè)過(guò)程是應(yīng)該無(wú)水還是有水?如果是無(wú)水是抽濾完,干燥嗎?我覺(jué)得單純的干燥,可能氫氧化鋁膠體活性是不是會(huì)下降? |
鐵桿木蟲(chóng) (正式寫(xiě)手)
至尊木蟲(chóng) (文壇精英)

至尊木蟲(chóng) (文壇精英)

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