Would there be a type of resin reaction flask that can be easily used on a rotovap? I'd like to find something that can be easily and completely
scraped out (to remove resinous materials or crystals).DJF90 - 24-2-2014 at 10:47
Whats wrong with a glass flask? Those for the large "20L buchis" (taking flasks 5 to 20L in size) are glass and have a neck wide enough to get your
arm in (must be about 100mm) for scraping product out, or for washing.Dr.Bob - 24-2-2014 at 11:45
I don't quite understand the problem, if you use a 24/40 oval (recovery/rotovap) type flask, it is pretty easy to remove solids once dry. You can
even get a 29/42 joint steam duct, if you want a larger flask opening still. But if you are looking to use a 2 part flask (like a reactor pot with
removable top) on a rotovap, that would seem like a very bad idea, as very hard to balance that to rotate smoothly.
I don't get what a resin type flask is for a rotovap. I consider resin type flasks as a screw-top bottle/vessel with a frit and stopcock on the
bottom for washing resin.
Well, a rotavapor "beaker" flask might be what you are after. If it is sturdy enough to run reactions in I don't know: Rotavapor Beaker Flaskchemrox - 25-2-2014 at 11:27
Absurdly expensive isn't it? You could reduce the volume in a 1-2 L rotovap and remove the rest of the solvent in a vacuum cabinet or with a fan in
the hood.Dr.Bob - 25-2-2014 at 13:26
If that (Rotavapor Beaker Flask) is what you want, a lyopholyzer flask is really what that is. I have not seen them used on a rotovap, but I guess
that they could work if you are really careful. They would be heavy if filled and the rubber top might just come loose until the vacuum is well
established. I use the small ones often for drying samples inside vials on the high vacuum pump. If you want some huge ones, I have the glass jars
in 1L size, as well as a few smaller ones, but not many of the rubber lids. Those always seem to get lost or damaged. soma - 28-2-2014 at 11:50
