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Topic: *Help* Production of H2S?  (Read 1808 times)

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Offline bungchung

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*Help* Production of H2S?
« on: July 11, 2018, 10:23:15 PM »
Hi All,

I'm currently stumped as to what the chemical reaction is that's producing H2S

I have a length of pipe made out of steel that has a layer of Iron Oxide. I've performed SEM EDS that indicate that there are clusters of Barium 50% wt, Sulfide 11% wt and Oxygen 26% wt; most likely BaSO4/Barite?
As soon as i pour 15% HCl into the pipe; H2S Draeger testing indicates that there is a production of H2S

From what i know; the reaction between Barite and HCl is extremely slow and the reaction would produce BaCl2 + H2SO4?

What could be happening to produce H2S?

Any help would be appreciated  :)

Cheers,

Offline chenbeier

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Re: *Help* Production of H2S?
« Reply #1 on: July 12, 2018, 05:16:31 AM »
This can only be happen, if you have also sulfide S2- in your sample. The SEM EDX doesn't indicate it is SO42- or S2-.

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