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Topic: Reaction of FeS2  (Read 2653 times)

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Offline Thirith

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Reaction of FeS2
« on: December 25, 2016, 08:26:09 AM »
I know that FeS2 can react with O2 and H2O resulting in FeSO4 and H2SO4
2FeS2+7O2+2H2O>2FeSO4+ 2H2SO4
But i wonder if it is possible for FeS2 to react with Hydrocloric acid.
I've looked everywhere in the textbooks and internet but cant find the possible answer.
I'd appreciate it if someone could help me.
« Last Edit: December 25, 2016, 12:12:50 PM by Thirith »

Offline billnotgatez

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Re: Reaction of FeS2
« Reply #1 on: December 25, 2016, 09:47:18 AM »
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Offline AWK

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Re: Reaction of FeS2
« Reply #2 on: December 25, 2016, 01:02:30 PM »
FeS2 does not react with HCl.
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Offline Thirith

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Re: Reaction of FeS2
« Reply #3 on: December 25, 2016, 01:25:49 PM »
FeS2 does not react with HCl.
Thanks .but would u mind telling me why the reaction does not work?
i also want to explain this to my friends

Offline AWK

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Re: Reaction of FeS2
« Reply #4 on: December 25, 2016, 04:30:15 PM »
Pyrite can be easily dissolve oxidatively. Concentrated H2SO4 or HNO3 are used (redox reactions).
Explanation why it does not dissolve in HCl (without oxygen) is rather uknown since solubility product cannot be measured to date.

If you are advanced in chemistry try to understand this work:
http://www.skb.com/publication/2479169/TR-13-19.pdf
AWK

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