because hot water has higher energy and could induce a reaction of some kind depending on what solid you are using. In certain cases, it could make your solid go from being miscible to being soluble, in which case, this type of filtration would no longer be helpful.
Thanks for the vid! taking O chem 1, and prepping for lab. “Organic Chemistry Lab Techniques” by Lisa Nichols is an opensource resource we're referencing. vacuum filtration pg 55 suggest using a vacuum trap to prevent any potential back suction when connecting/disconnecting
If one wanted to use activated charcoal for filtering in addition to the filter in the Buchner funnel, what would be the best way to go about it? Would adding a layer of charcoal to the filter in the Buchner funnel be the best way to go about doing it? So when you pour the substance into the funnel, it first goes through the activated charcoal layer, THEN through the filter paper. Let me know what you think.
I woulkd add directly to the solution and stir or swirl around allowing it to come in contact with all your product in solution. Allow 20 mins or so. theres no reason bar econmic that youu couldnt filter through an activated charcoal layer as well!!
@@jhyland87 np. Mainly replying for future readers. The guy above talks about adding it directly to the solution but you might want both parts. Contaminating the solids and adding extra work if you want both parts (maybe you're dealing with something where you need yield from both etc) seems counterprodtice and you might want to add it after it goes through the solids filter.
gravity filtration is a slow tedious proces, vaccum filtration is fast, economic and almost dries the solid (filtrate?) completely. winning is for winners, build yourself a buchner funnel and make a suction pump from a 50ml syringe or bike pump.
