Silverado7
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Sulfur trioxide production
I know that the way chemists produce sulfuric acid in the lab is by heating sulfur to sulfur dioxide and so on. I don't have the equipment or the
chemicals to do so. I was wondering if you guys had any ideas. The heating of a sulfate, maybe? Post your ideas please.
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Picric-A
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There are LOADS of posts on this topic!! UTFSE!!!
Yes you can heat sulphates to produce SO2 or SO3 but that requires lots of heat and time.
If you dont have the equiptment or chemicals to oxidise SO2 to SO3 then you definititly dont have the equiptment to decompose sulphates...
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Silverado7
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Yeah, I figured that out a while ago. One example was heating copper sulfate. It turned white and anhydrous with heat but did not reach decomposition.
Well, thanks anyway.
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Silverado7
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Hey, hold on a minute. You used the word oxidize. What you are saying is that I have to oxidize sulfur dioxide? Would it work if I diluted it in a
solution of potassium permenganate, a very useful oxidizing agent. If the sulfur dioxide enterd the potassium permengante, then solvent should
disappear (leaving the water) and oxidize the sulfur dioxide into sulfur trioxide, and since the potassium permenganate solution is mostly water, the
remaining water would combine with the sulfur trioxide to form sulfuric acid. Am I right? I'm unsure about the part of the KMnO4 disappearing, even if
it will lose its color. Anything?
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Picric-A
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Now i think about it i dont think Permanganates wouldn't work...
It would probably oxidise the SO2 to SO3/H2SO4 but then the H2SO4 would change the manganate to permanganate because of the equilibrium... I may be
wrong though... just a guess...
If you have access to Hydrogen peroxide that works well, leaving water and dilute sulphuric acid.
I use the work oxidise because it is infact oxidising the SO2 to SO3.
Normally you would use Oxygen as the oxidiser and V2O5 as a catalyst but NO2 works aswell.
but again, there are loads of posts on that! its all out there!
[Edited on 27-10-2008 by Picric-A]
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The_Davster
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We do not need another thread on this, we have many already.
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