HW HELP: decomposition of ferric sulfide

[olilee]

Hi! I was just wondering if the decomposition of ferric sulfide can break down into S8 molecules and ferric ions? Thanks in advance!

 

[chem_tr]

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

 

[ravenprp]

Yes, the decomposition of ferric sulfide can indeed break down into S8 molecules and ferric ions. Ferric sulfide, also known as iron (III) sulfide, has a chemical formula of Fe2S3. When heated, it undergoes thermal decomposition to form iron (III) oxide (Fe2O3) and sulfur dioxide (SO2). The reaction can be represented by the following equation:

2Fe2S3(s) → 4Fe2O3(s) + 6SO2(g)

In this reaction, the Fe2S3 molecules break down into smaller units of Fe2O3 and SO2. The sulfur atoms combine to form S8 molecules, while the iron atoms form ferric ions (Fe3+). Therefore, the decomposition of ferric sulfide does result in the formation of S8 molecules and ferric ions. I hope this helps!