bridgetender26 - 21-12-2015 at 16:11
Hello,
I am a new member and just starting out with my practice. I am trying to track down a hemispherical mantle with no heating element for a 1L round
flask. I have a magnetic stir plate that I am using for the heat but would like to put the bottom half of my flask into a fiberglass jacket to keep it
evenly heated.
Does this type of product exist? What would you do?
Thanks in advance.
Bert - 21-12-2015 at 16:30
What kind of temperatures are you intending to run the flask at.
bridgetender26 - 21-12-2015 at 16:31
Up to 225C
User123 - 21-12-2015 at 16:54
You can get solid blocks of iron which are flask-shaped and designed to go on top of a hotplate/stirrer to act as a heating mantle. I don't know if
they are made for one litre flasks, though. Nor do I know what they are called. But they exist -- I've used them.
Bert - 21-12-2015 at 18:14
How about a bath full of Aluminum 6mm shot for the bottom half of the flask, and some cheap fiberglass insulation for the top.
http://m.ebay.com/itm/Premium-5K-5000rds-ct-Aluminum-6mm-BBs...
Dr.Bob - 21-12-2015 at 19:11
The mantle would insulate the flask from the heat of the hotplate, and might even get burned. They do make bottom and top type heating mantles, that
can be used for heating flasks to high temps.
http://www.glascol.com/product/subproduct/id/106
If you are planning to heat up to 225, then a mantle should be able to work, but I don't like to take them much above that point. You could also use
high temp oil, BBs, or a metal heating block. Metal blocks work well at those higher temps, I have used Al heating blocks up to 300C.
[Edited on 22-12-2015 by Dr.Bob]