Alkaline materials are prone to leakage
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In the workshop, alkaline substances such as liquid caustic soda and phenethylamine can easily leak from the flanges of their delivery pipelines as well as from the delivery pumps. Liquid caustic soda is less of a problem – only a white substance is released – but even a small amount of leakage of phenethylamine can fill the entire room with an amine odor that is very difficult to get rid of! Have any experts encountered similar issues? How did you resolve them? Thank you!
The material of the gasket may not be suitable; try using another one.
That’s the case with alkaline solutions: when they leak out, they leave behind a patch or a pile of white substance. However, it doesn’t leak everywhere; leaks usually occur in the alkali solution preparation system, which is a part that is used frequently.
Yes, it’s quite annoying, especially phenethylamine – when it leaks out, its smell is very strong, and it’s difficult to manage; it’s quite troublesome
Replace the material of the gasket and reinstall it
Under normal circumstances, there should be no leaks; if there are individual leak points, using a PTFE gasket and wrapping a layer of tape around it will solve the problem.
It is best to use PTFE gaskets; other types of gaskets are prone to alkali corrosion
It could be a problem with the material of the pad, or maybe the bolts on the flange weren’t tightened properly; the bolts need to be tightened in the correct direction
Leak prevention -- valves and flanges, with and without socket connections.