Bromine

[TheVacuumGuy]

I just got my 35 % H2O2 (its only 250ml so going to order couple more)

AFAIK, sulfuric + Kbr (or NaBr) is only used to make HBr in situ. Since I got couple of bottles of commercial boiling Hbr i can probably skip the first half ( did a quick test in a test tube and released hell lot of bromine i had to throw it out lol).

If there are reasons against or more benefits of going the salt+sulfuric route, i'd like to know.

thanks all for the comments

 

[TheVacuumGuy]

For future readers.

The way to go is indeed KBr + H2SO4 and add H2O2 dropwise using a simple distillation setup. Used both 35% h2o2 and 13% h2o2 and both works just triple the amount.

Or KBr + KMnO4 and add H2SO4 dropwise also using a simple distillation setup.

The second yields more, but is more work.

Both ways, the obtained bromine has water and needs to be processed further with H2SO4 to remove it.