Sidmadra - 14-10-2017 at 21:36
93% Sulfuric Acid is commonly sold at many hardware stores, but I am unable to find the MSDS online for the brands I have access to. I read in another
thread here that occasionally thiourea or inorganic phosphates are used as inhibitors with respect to preventing dissolution of copper pipes (I think)
I need to generate some CO Gas through the dehydration of Formic Acid. Is it likely that the inhibitors present in these OTC Sulfuric Acid's interfere
with this reaction, or am I worrying about nothing?
JJay - 14-10-2017 at 22:15
I don't think inhibitors will interfere.
ninhydric1 - 15-10-2017 at 09:55
If you're afraid that the organic ones might interfere, add a few mL (slowly) of 30% hydrogen peroxide to remove the organics. If you need 98%
sulfuric acid, just boil off the water-sulfuric acid azeotrope outside. But as JJay says, they shouldn't interfere.