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Author: Subject: H2SO4- how can you detect it?
Oliver Twist
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[*] posted on 4-8-2004 at 00:56
H2SO4- how can you detect it?


i have to test for MgSO4 in fresh water and then restore the water to its original balance of about 6.9.

[Edited on 4-8-2004 by Oliver Twist]
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vulture
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[*] posted on 4-8-2004 at 01:29


Your question is a bit confusing.

Do you want to detect H2SO4 or MgSO4 or both?

Bariumsalts will from a wite precipitate of BaSO4 with any sulfate. Be warned though that soluble barium salts are very toxic.




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[*] posted on 5-8-2004 at 23:00


To test for MgSO4 you can simply boil the aqueous soln and add sodium carbonate. you should get a white percipitate. To test for sulfuric acid, use any metal that can displace hydrogen from acids and will create a non soluable suflate (can't think of a distinct one off the top of my head)
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MadHatter
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[*] posted on 6-8-2004 at 22:38
H2SO4


The methods for MgSO4 listed above are good indicators. For H2SO4, or
any other acid for that matter, I would use pH paper or solution.




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