[Matt17]

Hello!

I know that: KMnO₄, CrO₃, KNO₃ and KClO₃ are all strong oxidizers.

KMnO₄ with glicerin ignites spontaneously.
CrO₃ with C₂H₅OH ignites spontaneously.
KNO₃ with Zn and a few drops of water ignites spontaneously.
KClO₃ with glicerin and H₂SO₄ ignites spontaneously.

The thing is that I need to find a substance which will give a spontaneous ignition with each of the substances (KMnO₄, CrO₃, KNO₃ and KClO₃). I was thinking of a strong reducer. It would be good if this substance wasn't too expensive and was quite common (I have to carry out a few experiments and my chemistry teacher can give me the substances I need provided she has them).

[Borek]

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