Can Ferric Sulfide Decompose into S8 Molecules and Ferric Ions?

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The discussion centers on the decomposition of ferric sulfide (FeS) and its potential products. It is noted that oxidative decomposition typically yields iron(III) oxide (Fe2O3) and sulfur dioxide (SO2) or sulfur trioxide (SO3), influenced by oxygen levels. In low oxygen conditions, there may be a slow conversion of iron(III) sulfide (Fe2S3) to iron(III) oxide and elemental sulfur, which can oligomerize into S8 molecules.
olilee
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Hi! I was just wondering if the decomposition of ferric sulfide can break down into S8 molecules and ferric ions? Thanks in advance!
 
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Hello, I had skipped your message, sorry.

I think the oxidative decomposition of FeS will only produce Fe_2O_3 and SO_2 or SO_3, depending on the oxygen concentration. If it is sufficiently low, then a very slow conversion of Fe_2S_3 to Fe_2O_3 and elemental sulfur, which oligomerizes into S_8 rings, might be possible.

Regards,
chem_tr
 
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