Does Sulfur Dioxide react with PVC piping?

[Elite Engineer]

I'm considering psaaing sulfur dioxide through pvc piping under pressure in order to make sulfuric acid. Does sulfur dioxide react with the make-up of pvc piping?

[Enthalpy]

At room temperature but not +60°C, PVC is given as resistent to sulphur dioxide by the manufacturers:

https://www.spilltech.com/wcsstore/SpillTechUSCatalogAssetStore/Attachment/documents/ccg/CBOOM.pdf

plus ipexinc and more, google:

PVC "sulfur dioxide" compatibility

 

Though, I would NOT use a Pvc pipe for pressure, with any fluid. I trust only metals for pressure, or fibers. Worse, Pvc is brittle, as opposed ot polypropylene. You don't want a deadly leak when a rock or a tree falls on your pipe, do you? Regulations forbid it probably.

 

In case you want to stress a plastic, please remember that its long-term resistance is very different from its short-term proof stress: easily 5 or 10 times less.

[Elite Engineer]

Though, I would NOT use a Pvc pipe for pressure, with any fluid. I trust only metals for pressure, or fibers. Worse, Pvc is brittle, as opposed ot polypropylene. You don't want a deadly leak when a rock or a tree falls on your pipe, do you? Regulations forbid it probably.

 

In case you want to stress a plastic, please remember that its long-term resistance is very different from its short-term proof stress: easily 5 or 10 times less.

I did some more research, I'm going to use copper tubing..I don't know why I thought of pvc piping, as the tubing will actually go through sulfric acid

[AbeMichelson]

Sulfuric Acid + Copper -> Copper Sulfate!

If Sulfur Dioxide is around any water it will form sulfuric acid.

I would go with stainless steel. It is your safest bet.

[Sensei]

If Sulfur Dioxide is around any water it will form sulfuric acid.

 

Sulfurous acid, H2SO3 (H2O + SO2 -> H2SO3)

 

Sulfuric acid is H2SO4

 

You can use Hydrogen peroxide H2O2 to create H2SO4

[Moontanman]

I'd go with CPVC at least, it's high temperature resistant and corrosion resistant...

http://en.wikipedia.org/wiki/Chlorinated_polyvinyl_chloride

[Enthalpy]

Plastic pipes and pressure? Beware!

 

Here a corrosion table for sulfur dioxide and metals:

http://www.google.de/search?q=%22Sulfur+dioxide%22+Copper+compatibility&ie=utf-8&oe=utf-8&rls=org.mozilla:fr:official&client=firefox-a&gws_rd=cr&ei=NRO7UpzZOMebtAbd9IH4AQ

"stainless steel" isn't precise enough.

[Moontanman]

CPVC is both temp and pressure rated...