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Topic: Sulfates with sulfuric acid?  (Read 5222 times)

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Offline skoozy

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Sulfates with sulfuric acid?
« on: March 08, 2011, 10:15:21 PM »
Why do we not test sulfates with sulfuric acid? Is it because sulfates are the salts of sulfuric acid?
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Offline Nobby

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Re: Sulfates with sulfuric acid?
« Reply #1 on: March 09, 2011, 12:39:34 AM »
What do you want to test by this?
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Offline vmelkon

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Re: Sulfates with sulfuric acid?
« Reply #2 on: March 10, 2011, 08:07:20 AM »
Because you don't get a visible change.
If you add HCl, you won't get a visible change either.

If you have Na2SO4 and you add CaCl2, you get the insoluble CaSO4.
You can also use BaCl2
http://en.wikipedia.org/wiki/Barium_chloride
As a cheap, soluble salt of barium, barium chloride finds wide application in the laboratory. It is commonly used as a test for sulfate ion
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