Activated aluminum easily releases hydrogen out of the water, I do not see problems in wet solvents for this reaction. The thickness matters to the reaction speed, thick aluminum is more difficult to react, but possible.
Activated aluminum easily releases hydrogen out of the water, I do not see problems in wet solvents for this reaction. The thickness matters to the reaction speed, thick aluminum is more difficult to react, but possible.
I need the dry solvent later for salting out the sulfat and because i recover most of my solvents, i dry them very hard. It should only be a comparison of what little things I sometimes pay attention to in relation to the purchase of the aluminum foil.
You can dry the extract after. If we take benzene, then after azeotropic distillation, the remaining water is evaporated together with benzene
Which synthesis are you now exactly talking about?
For extraction I use petroleum ether, dry this with MgSO4 and evaporate it. Then I use my dried solvents for salting out.
Which distillation are you talking about? I once used a process where I did a distillation before alkalinization and got all the solvents and almost all the water out. The reason for this was to get the water-soluble impurities out so that they would not be in the product later during steam distillation.
Try with benzene or its homologs. And the final product is better crystallized into acetone than in any other (if acetone prevails)
after have washed a couple of time it, i had my precursor ( nitro group/-- (P2NP disolved in iso alcohol) with GAAK. and nothing !!!
i had my precursor ( nitro group/-- (P2NP disolved in iso alcohol) with GAAK. and nothing !!!
if someone can help me.
In my experience it is best to start the reaction when the amalgamation is started. Wait for a `sizzling` sound of the amalgam (Al + HgCl2 + water) and for all the Al coming to the top and small bubbles appearing. When all 3 signs are together 1.sizzling sound 2. Al coming to the surface floating 3. small bubbles, then drain the water immediately and add your reaction mixture (10g P2NP + 100ml IPA + 50ml glacial acetic acid). You will see a very stormy reaction immediately. Cool to some degree, but not overly, let it run as long us it is above 40 degree C. The better you get the beginning of when all 3 signs are together the better. I tried to wash it once and it still worked, but I think first better to try without washing as you will get rid of the Mercury later anyway. I hope this helps.
can I use a cork stopper?
Why do you want to close the flask?
since they say to put an allhin condenser... i didn't find it logical to leave the other neck open
anyone, reuse this mercury to do a other amalgam ?
cause honestly... it's pretty hard to get !
thank you guys
you need mercury
Our team brings together the best specialists from different fields.
We are ready to share our experience, discuss difficult issues and find new solutions.
Connect notifications to always stay in touch with the forum!