I’m sorry to hear that news.
I lent my mobile phone to my friend. He didn’t return it to me, so I didn’t see the new discussion these days, sorry.
Yeah,the first step is electrolyzing (NH4)2SO4 solution containing H2SO4 to prepare (NH4)2S2O8.There is also a saying that 60% sulfuric acid can be used for electrolysis to directly prepare H2S2O8.
Then stepwise hydrolysis in normal water and 1atm.
The reaction mechanism is as follows.
H2S2O8+H2O===H2SO4+H2SO5
H2SO5+H2O===H2SO4+H2O2
If you want to extract hydrogen peroxide, you can use a vacuum distillation method.
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