hydrogen peroxyde's decomposition with potassium permanganate
tools:
Erlenmeyer flask(1000mL),spatula
safety equipement:
security glasses , lab coat and gloves
the reagents:
5 mL hydrogen peroxyde (a least 33% concentrated),some grain of potassium permanganate
the time required:
few seconde
the desired purpose:
the purpose of this experience is to demontrate the oxidation-reaction between the potassium permangante and hydrogen peroxyde
potential risk
permanganate projection , the potassium permanganate stains the clothing for many weeks
(the steam is not dangerous because it is a oxygen and water vapour)
precautionary measure:
wearing a blouse and a pair of security glasses
hypothesis:
I think that the potassium permanganate oxidizes hydrogen peroxyde and reduces it to oxygen and water.
the Handling:
-Take a 1000 ml Erlenmeyer flask
-Pour 5ml hydrogen peroxyde inside
-Then put in a few gramms of potassium permanganate inside
-look
-close the erlenmeyer flask with a stupper
-perform the oxygen test
-Take a buchette, light it, blow on it and plunge it into the container.observe
the results:
to conclude:
the oxidation-réaction between potassium permanganate and hydogen peroxyde product a oxygen and a water
merci de ne pas effacer :)
