Schleimsäure - 21-7-2023 at 08:56
Since Boron(III)) bromide is not cheap at all and very usefull I read it can be produced by the reaction of Boron carbide with bromine at 300 degrees.
And purified by vaccuum destillation afterwards.
Boron carbide you get very cheap as industrial material.
Now I wonder what would be a practical way to get the constant reaction temperature of over 300 degrees Celsius.
I sense without a furnace or something no chance?
FrecherChemiker - 21-7-2023 at 10:28
I would say that temperature is the least of your problems.
Something like that could work: https://www.winkler.org/en/applications/products/categories/...
Or maybe a heating mantle depending on the setup.
The other method via KBF4 looks a bit more user friendly but lower yield.
In this book, section on Boron, you can find a setup.
http://library.sciencemadness.org/library/books/brauer_ocr.p...
Old related thread:
http://www.sciencemadness.org/talk/viewthread.php?tid=9463
draculic acid69 - 22-7-2023 at 00:32
The only feasible way to do this is in amateur settings is a fused silica/quartz 2neck flask with a dropping funnel over a flame hot enough to make
boron powder glow red whilst dripping br2 onto it and condensing the vapour.
Chemical force on YouTube does it in a test tube.
Every other method is assigned to the too hard/ too rare basket
Schleimsäure - 22-7-2023 at 08:14
Thanks for the links and suggesttions. Thaese mantles from winkler.org look interesting.
Also in general for reactions which require high temps.
In case of Borontribromoide I will stick with buying though. Probably too much of a hazzle indeed. Thanks anyway.