I need to heat 250, 500, and 1000ml RBFs. Ideally I would have a heating mantle for each of these but I want to keep costs down. Would a 1000ml
Glas-Col (O Series; 100A O408) work for all of them?happyfooddance - 3-10-2018 at 15:46
Yes! You can put stuff around your flask to get better heat transfer and insulate as well (Al foil, Al shot, copper bb's, etc.).Mr. Rogers - 3-10-2018 at 16:14
Those do look very nice, but I can't afford $600+. Mr. Rogers - 3-10-2018 at 16:22
Other companies re-brand this system like ChemGlass and they come up on Ebay from time to time at a substantial discount - like at around $100.
They're often sold by liquidators that don't seem to know what it is or how to describe it.Dr.Bob - 3-10-2018 at 17:16
Some of the 500 ml mantles are flat and flexible enough to be able to wrap around a 250 but also flatten some to hold a 1000 ml rbf. Not saying
that it is perfect, but that is an alternative to using a 1000 ml mantle plus filler (sand, shot, ball bearings, etc). A lot depends on which size
you can find a good deal on.