What material should be used for trifluoroacetic acid pipelines?
Thread Content
Dear experts, I need trifluoroacetic acid for production recently. What type of pipeline material would be suitable? Is PP or stainless steel 304, or steel-lined PTFE acceptable?
A steel-lined PTFE version is definitely possible, as long as the temperature and pressure are suitable
Can a trifluoroacetic acid metering tank be made of stainless steel 304?
For trifluoroacetic acid metering tanks, 304 steel is generally not used; alternatives such as steel lined with PO, PP, or tetrafluoroethylene can be considered.
304 definitely won’t work; austenitic stainless steel has limited resistance to corrosion by organic acids. 316L doesn’t work either, I’ve tested it myself.