Experiments i can do with Potassium metabisulfite?

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Offline valeg96

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So I have around 250g of  K2S2O5, what could i do with it? is there any experiment, possibly from which i can get another substance, that i could do in a chem lab?

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Offline SorryDnoodle

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Re: Experiments i can do with Potassium metabisulfite?
« Reply #1 on: 24/02/2014 08:30:49 »
You can heat it up to 190 degrees C and decompose it following:
K2S2O5(s) → K2SO3(s) + SO2(g)

The results being potassium sulfite and sulfur dioxide.