Decomposition of Hydrogen peroxide by Potassium permanganate

IMPORTANT:
All content here meant to be Educational,None of the above experiment should be repeated on your own.

It is a reaction between 50% Hydrogen peroxide (H2O2) and Potassium permanganate (KMnO4) . It is a very vigorous reaction which steam (H2O) and Oxygen (O2) are the desired products, side products include Manganese(IV) oxide (MnO2) and trace amount of Potassium compound.

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Education

Tags:

• chemistry
• pyrotechnics
• potassium
• permanganate
• manganate
• manganate(VII)
• hydrogen
• peroxide
• manganese
• oxygen
• KMnO4
• H2O2
• MnO2
• K2O2
• H2O
• O2
• energetic
• experiment
• explosion
• Potassium
• science
• for
• cforchemistry
• HD
• 化學
• 實驗

[arnrgrerlrors]

you did a mistake...the number of the oxygens is not right....test it again....:)

[Cforchemistry]

The equation is not balanced.

[coolliger]

Can I dispose of the manganese IV by adding water to make a solution, adding sodium carbonate, and filtering it off and throwing it out.

[Cforchemistry]

you can dispose by adding acid, makeing Mn2+ solution.

[coolliger]

@Cforchemistry

will any acid do?

[Cforchemistry]

i would say yes vinegar will do

[bla287]

No, there's nothing wrong with your vid ;) I just thought the initial reaction (when there's no MnO2 yet) would be something like this:

Reduction:

MnO4(-) + 2 H2O + 3 e(-) → MnO2 + 4 OH(-); E° = +1.7V

Oxidation:

H2O2 → O2 + 2 H(+) + 2 e(-)

E° = +0.7V

So from the potentials, this should be possible. Of course, later on as there is more MnO2 present, another more complicated reaction occurs where the MnO2 just catalyzes the dismutation of H2O2 to H2O and O2, correct me if I'm wrong.

[PlayLikePros]

@arnrgrerlrors

2KMnO4 + 2H2O2 ==> K2O2 + 2MnO2 + 2H2O + 2O2

thats the balanced one

[iskatelikeanoob]

what about 3% H2O2

[ekojk1242]

Ok now I know I might be asking a stupid question but, when will we use this information in our lives?

[alinan90]

We used Potassium Iodine (KI) and placed it in a closed beaker. The stopper had pressure sensor attached and that way you can measure how much O2 was released.

[kENNYko0i]

thank you, now i can finish my homework ;D

[DCJellybean]

is there a way of measuring the amount of gas given off?

if so how and is it safe for a classroom experment?

[roboticmehdi]

is there any catalyst which is not powder but rather a solid? i mean something like silver metal but not as expensive as silver. it must be solid so that the surface area remains same?? thanks...

[lambogeek]

we used mnO2 in school for catalyst