TheBlindGenius (Hive Bee)
07-25-02 17:02
No 337123
      Shaking vs. stirring  Bookmark   

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.
07-25-02 17:58
No 337141
      Shaking stirring, Shaken'dog?  Bookmark   

Shaking, and swilling(swirling)

Well, really you want to mix the contents right?
-Place 6-8 marbles into SRV
-watch yield go up,.


IQ is the rate of logic, as Wisdom increases logic, fear & compromise decrease to reveal objectivity
(Hive Bee)
07-26-02 17:09
No 337515
      Post 325947  Bookmark   

Post 325947 (El_Zorro: "alright, you say it's a 'lazy man's wacker', but ...", Methods Discourse)

Who is that masked man?
(Hive Bee)
07-30-02 07:18
No 338977
      Ok check this out  Bookmark   

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.