Description of experiment
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Needed compounds:
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potassium permanganate : KMnO4
methyl ethyl ketone : CH3 CO CH2 CH3
acetone : CH3 CO CH3
Class:
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elem=C,Mn
organic
Summary:
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Potassium permanganate dissolves in acetone and in MEK. In the latter,
however, it dissolves in smaller quantities.
Description:
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Add some KMnO4 to some acetone: The solid dissolves, the liquid becomes deep
purple.
Add a similar amount of KMnO4 to the same amount of MEK: The solid now also
dissolves, but only a small portion. The liquid becomes pink/purple, its
color is much less intense, compared to the acetone-liquid.