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Manganese(II) Chloride


jordehwa

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So i want to make some Manganese(II) Chloride From MnO2 and HCL, yes I realize that this makes chlorine.

 

So i dissolved the MnO2 in the hcl and it has green Iron impurities in it, to much for recrystalaltion to work. what would be the best way to get the impurities out?

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My recommendation would be to wash the MnO2 with some diluted acetic acid, which will clean off some of the other metal impurities, wash it again with plenty of distilled water, then one last wash with dilute HCl (iron impurities will react with the Cl along with very little Manganese, leaving the unreacted MnO2 nearly free of iron).

 

Then you'll be ready for the big mean MnO2/conc. HCl reaction. Do this outside or in a fume hood, mucho Cl comes out of that reaction.

 

Robert

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