How to prepare hydrogen peroxide

The first layer method is not desirable. You won't produce hydrogen peroxide like this.

Sodium peroxide is an alkaline oxide, which reacts with acid to produce sodium chloride and water.

There are many ways:

BaO2 (barium oxide) +H2SO4=BaSO4↓+H2O2

H2S2O8+2H2O=2H2SO4+H2O2

Electrolytic saturated solution of ammonium bisulfate;

2NH4HSO4 == (NH4)2S2O8 (ammonium persulfate) +H2 (electrolysis)

Hydrolysis of ammonium persulfate;

(NH4)2s2o 8+2h2so 4 = = h2s2o 8+2nh 4h so 4

H2S2O8 + H2O == H2SO5 + H2SO4

Sulfuric acid+H2O == sulfuric acid+hydrogen peroxide

This method is no longer commonly used.

Ethylanthraquinone method:

2-ethylanthraquinone+H2 = = 2- ethyl -9, 10- anthracenediol (palladium catalyst)

2- ethyl -9, 10- anthracenediol+O2 = = 2-ethylanthraquinone +H2O2.

Total reaction: H2+O2 == H2O2 (2- catalyzed by 2-ethylanthraquinone and palladium).

This method was developed after 1945 and is the main method.

References:

Inorganic Chemistry (3rd Edition) Volume II, Higher Education Press.