opfromthestart
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Posts: 46
Registered: 23-12-2018
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Mood: tetranitrammmonium chlorate
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Reaction between Magnesium and aqueous Sodium Metabisulfite (not Potassium Nitrate)
I added some shavings of Magnesium metal to a solution of KNO3 I bought as stump remover. These started to react with colorless gas being
formed and I thought the KNO3 might be a catalyst for:
Mg + 2H2O = Mg(OH)2 + H2
However, I found that eventually with enough Magnesium added the reaction stops. I don't know exactly what is occurring but I would guess it could be
something like:
Mg + KNO3 = MgO + KNO2
But this reaction doesn't form any gases.
Can anyone verify this reaction or propose the actual one?
[Edited on 5-2-2019 by opfromthestart]
College student and hobby chemist
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opfromthestart
Harmless
Posts: 46
Registered: 23-12-2018
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Mood: tetranitrammmonium chlorate
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Nevermind I checked the SDS(I'm surprised I didn't check it before) and it is sodium metabisulfite. I would still be interested to see what the
reaction would be as I am not familiar with this chemical.
College student and hobby chemist
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clearly_not_atara
International Hazard
Posts: 2692
Registered: 3-11-2013
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Mood: Big
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Mg + Na2S2O5 + H2O >> MgSO3 + Na2SO3 + H2 (g)
[Edited on 04-20-1969 by clearly_not_atara]
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