Post 250853 (https://www.thevespiary.org/talk/index.php?topic=9782.msg25085300#msg25085300)
(baalchemist: "Re: Bioassays", Methods Discourse), but it landed mistakenly first here, for those who don't understand where he is talking suddenly about :) .Post 224697 (https://www.thevespiary.org/talk/index.php?topic=9570.msg22469700#msg22469700)
(LaBTop: "Re: Making Clear", Methods Discourse), so it works as expected. Now try alu powder added with a powder funnel.Oh my god. When trying to do X00g or even multi-kilo batches I suggest you look into sheet Al or hydrogenation, not Al foil. Even when using foil a stirrer will be needed, and I don't see any reason why a condenser should be omitted.
You still go out from the basic idea, having all your alu already in the motherliquids.
My idea of using Alu powder is based on the context of this thread: "dripping in" alu.
And if that works, you have the most OTC procedure ever seen here! From small to bigscale, and bigscale I mean kilo's of ketone.
I suppose you could bring back all those immens quantities of solvents (MeOH,IPA) to very acceptable bigscale quantities when regulating the "dripping" rate of the Alu powder.
The amount of nitro and HgCl2 is already very acceptable, so could someone tell me why alu powder shouldn't work?
Combined ofcourse with a nearly closed system with an overhead stirrer and a reflux column added.
That freezer idea was just to show the "all weather" possibilities for rough fieldwork.
I'm glad Baal took the time to try out such a "crazy"idea! I hope he will try the powder also.
I'm quite sure it will work when the pace of the alupowderdripping is controlled carefully by a thermometer coupled to a powderfunnel opening device. Tests can be done by hand with a pipette.
The surface to mass ratio of alupowder is immensly bigger than sheets or foils. LT/