24小时热门版块排行榜    

查看: 564  |  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)

引用回帖:
3楼: Originally posted by 青若 at 2015-03-23 16:00:34
第二行:沉淀加入乙醇中,无水、有水均可,因为之前用蒸馏水洗涤后没提到干燥的过程。如果不放心,直接用无水的。
第三行: CoII TPP乙醇溶液的配制需要无水乙醇。

没做过
落霞与孤鹜齐飞,秋水共长天一色。
4楼2015-03-24 08:56:05
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 4 个回答

我的工大

铁杆木虫 (正式写手)

不要沉了啊,快回复啊,麻烦啊
2楼2015-03-23 11:06:00
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)

【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
第二行:沉淀加入乙醇中,无水、有水均可,因为之前用蒸馏水洗涤后没提到干燥的过程。如果不放心,直接用无水的。
第三行: CoII TPP乙醇溶液的配制需要无水乙醇。
落霞与孤鹜齐飞,秋水共长天一色。
3楼2015-03-23 16:00:34
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 材料与化工328分调剂 +3 。,。,。,。i 2026-03-23 3/150 2026-03-24 10:34 by Pegasus0429
[考研] 一志愿河北工业大学0817化工278分求调剂 +7 jhybd 2026-03-23 12/600 2026-03-24 09:03 by jhybd
[考研] 化学308分求调剂 +3 你好明天你好 2026-03-23 3/150 2026-03-23 20:11 by macy2011
[考研] 接收2026硕士调剂(学硕+专硕) +4 allen-yin 2026-03-23 6/300 2026-03-23 15:04 by 汪!?!
[考研] 315分,诚求调剂,材料与化工085600 +3 13756423260 2026-03-22 3/150 2026-03-22 20:11 by edmund7
[考研] 一志愿华中农业071010,总分320求调剂 +5 困困困困坤坤 2026-03-20 6/300 2026-03-22 17:41 by hxsm
[考研] 287求调剂 +8 晨昏线与星海 2026-03-19 9/450 2026-03-22 17:01 by i_cooler
[考研] 354求调剂 +7 Tyoumou 2026-03-18 10/500 2026-03-22 11:11 by 人来盛
[考研] 材料学硕301分求调剂 +7 Liyouyumairs 2026-03-21 7/350 2026-03-21 22:31 by peike
[考研] 初试 317 +7 半拉月丙 2026-03-20 7/350 2026-03-21 22:26 by peike
[考研] 313求调剂 +4 肆叁贰壹22 2026-03-19 4/200 2026-03-21 17:33 by ColorlessPI
[考研] 二本跨考郑大材料306英一数二 +3 z1z2z3879 2026-03-17 3/150 2026-03-21 02:29 by JourneyLucky
[考研] 化学求调剂 +4 临泽境llllll 2026-03-17 5/250 2026-03-21 02:23 by JourneyLucky
[考研] 一志愿武理材料305分求调剂 +6 想上岸的鲤鱼 2026-03-18 7/350 2026-03-21 01:03 by JourneyLucky
[考研] 274求调剂 +10 S.H1 2026-03-18 10/500 2026-03-20 23:51 by JourneyLucky
[考研] 22408 344分 求调剂 一志愿 华电计算机技术 +4 solanXXX 2026-03-20 4/200 2026-03-20 23:49 by alg094825
[考研] 南京大学化学376求调剂 +3 hisfailed 2026-03-19 6/300 2026-03-20 23:43 by hisfailed
[考研] 329求调剂 +9 想上学吖吖 2026-03-19 9/450 2026-03-20 22:01 by luoyongfeng
[考研] 求调剂 +3 eation27 2026-03-20 3/150 2026-03-20 19:32 by JourneyLucky
[论文投稿] 申请回稿延期一个月,编辑同意了。但系统上的时间没变,给编辑又写邮件了,没回复 10+3 wangf9518 2026-03-17 4/200 2026-03-19 23:55 by babero
信息提示
请填处理意见