Sciencemadness Discussion Board

h2o2 from h2so4

idrbur - 7-7-2015 at 08:36

I want to make h2o2 from h2so4 but don't have apparatus for steam distillation. So i want to know that there is any other convinient way to separate h2o2 from the solution.

hissingnoise - 7-7-2015 at 08:54

Check this out?

idrbur - 7-7-2015 at 09:55

This process also involve distillation. I need a process through which i can seprate h2o2 from solution without distillation.

Zyklon-A - 7-7-2015 at 10:19

As shown in hissingnoise's link, the use of barium peroxide precipitates the sparingly soluble barium sulfate, leaving a nearly clean solution of hydrogen peroxide.
I've made barium peroxide by heating barium nitrate to 1 000°C in a SS crucible with an oxy-methane torch:

Ba(NO3)2 → BaO + 2 NO + 1 1/2 O2

Then I cooled it down to 500°C and blew pure oxygen over it for ten minutes while maintaining that temperature.
2 BaO + O2 → 2BaO2

Now I had much better things to do with this barium peroxide then make such an OTC material as dilute hydrogen peroxide, but if it's worth it to you, this is rather easy.