The Hive => Methods Discourse => Topic started by: TheBlindGenius on July 25, 2002, 05:02:00 PM
Title: Shaking vs. stirring
Post by: TheBlindGenius on July 25, 2002, 05:02:00 PM
when doing the KRV/SRV thing, using methanol as solvent and 1g pdcl2 per 50 mL safrole, why can't stirring be used instead of shaking? KrZ's method with DMF/O2 uses stirring and gets great yields. Why is it that shaking is emphasized in the KRV/SRV reaction? Swim's stirrer is pretty damn fast on 10, why would oxygen not be absorbed by stirring, but by shaking only? if stirring worked, it would be a much easier reaction, right? no more shaking, you could just set the thing on the stirrer and come back every half hour to repressurize.
Title: Shaking stirring, Shaken'dog?
Post by: hellman on July 25, 2002, 05:58:00 PM
Shaking, and swilling(swirling)
Well, really you want to mix the contents right? -Place 6-8 marbles into SRV -watch yield go up,.
hellski
IQ is the rate of logic, as Wisdom increases logic, fear & compromise decrease to reveal objectivity
Title: Post 325947
Post by: El_Zorro on July 26, 2002, 05:09:00 PM
Post 325947 (https://www.thevespiary.org/talk/index.php?topic=9598.msg32594700#msg32594700)
(El_Zorro: "alright, you say it's a 'lazy man's wacker', but ...", Methods Discourse) Who is that masked man?
Title: Ok check this out
Post by: SPISSHAK on July 30, 2002, 07:18:00 AM
Try modifying the stirbar to get greater induction of the gasses. A friend I know was working on an invention like this. Basically involves drilling holes in a stirbar to cause induction of gasses into solution as it spins, try it sometime I don't give bad advise, unlike some people around here.