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Topic: 50% H2SO4 precipitates at 50.6F; what precipitates?  (Read 3405 times)

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Offline iheartsludge

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50% H2SO4 precipitates at 50.6F; what precipitates?
« on: October 25, 2011, 09:51:28 AM »
Hello,

Per MSDS and field experience, 50% (w/w) H2SO4 forms crystals below 50F.

My questions is: what is precipitating?

Thanks.

Rob

Offline AWK

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Offline iheartsludge

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Re: 50% H2SO4 precipitates at 50.6F; what precipitates?
« Reply #2 on: October 25, 2011, 11:43:59 AM »
Posted alittle too soon.

It's FeSO4.7H20

We're utilizing recovered H2SO4 and it has a concentration of ~9ppm Fe.

This is why crystals form and do not un-form.

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