how do we seperate oxygen from H2O2
Answers
Explanation:
It’s not hard to do, anything that will separate dihydrogen oxide (water) into hydrogen and oxygen will do the same for hydrogen peroxide. The problem is- it’s inefficient.
This is a redox reaction that is thermodynamically unfavoured- the reverse of the normal exothermic oxidation of hydrogen/ reduction of oxygen that we are familiar with to produce water.
A problem here is that hydrogen peroxide is already a higher oxidation level than water; basically H2O2>H2O>H2 + O2. So as you can see, the peroxide has to be reduced to water BEFORE it will reduce to hydrogen and oxygen. That’s usually very easy to accomplish, but it is another step with the associated cost (plus the fact peroxide’s already more expensive than water in most places!) and control issues.
At this point electrolysis is the only process practically available to complete the reaction. Extremely high temperatures- such as 3,000 Celsius or higher- will cause it to separate to the component atoms but they also tend to recombine before you can practically separate them! Chemical reaction with materials such as metallic sodium or potassium will also break water down but the end results are hydrogen and an oxide or hydroxide etc. rather than free oxygen.
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electrolysis is a method to separate any element
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