H2SO4 96% material selection
H2SO4 96% material selection
(OP)
What are my options for piping a fill line for 96% sulfuric acid?
Thanks
Thanks
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H2SO4 96% material selection
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RE: H2SO4 96% material selection
RE: H2SO4 96% material selection
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Look at their Technical Report #50.78
http://www.genchemcorp.com/pdf/tsr5078.pdf
RE: H2SO4 96% material selection
RE: H2SO4 96% material selection
RE: H2SO4 96% material selection
in addition, for ducting 96% sulfuric acid, CS or GRP + PTFE lined, high silicone pipe is suitable
RE: H2SO4 96% material selection
Concentrated sulfuric acid has a tendency to cause "hydrogen grooving" in carbon steel piping systems of moderate velocities. You must consider both the material and velocity in piping materials selection.
Many companies use CS for tankage and SS for nozzles and piping.
Review these links:
http://www.meic.com/Newsletters/2003/Winter03.htm
http://www
http://www
Come back to us.....and discuss your final selection....
regards...
MJC
RE: H2SO4 96% material selection
RE: H2SO4 96% material selection
http://www.upchurch.com/TechInfo/chemComp.asp
SMF1964 has a very valid point: H2SO4 is a very aggressive dessicant and it will grab the moisture from the air. If you have the acid in a tank it can become locally diluted at the surface. H2SO4 magically becomes MORE corrosive when it is diluted to 93% or less. Moral of the story: Store it in a Nitrogen-blanketed tank or let the tank breathe through a dessicant dryer. Or use all resistant materials: Glass or Polymer lined, or exotic alloy.
RE: H2SO4 96% material selection
JimCasey makes a good point about the dilute level of acid that will be generated in an improperly vented H2SO4 storage tank. For many years several companies have produced dessicant dryers designed specifically for concentrated H2SO4 storage tanks.
Addtionally, API has publications and inspection recommendations(including pictures)on how this dilute acid layer will corrode just a section of the tank shell.
MJC