Hexane soak the cls for a few hours at a time & thoroughly clean the system out by hand with acetone & etho. This will take a course of a few days to properly decontaminate. Boiling the flasks is extremely dangerous & I wouldn’t suggest doing so unless you’re in a c1d2 location. Volatile gas off can be way to unpredictable. Best to just soak all glass ware in acetone & etho base with 5 gallon buckets as suggested above, you will need proper PPE. Suit up boot up, gas respirator, the world my friend. After a weeks worth of washing & cleaning all top to bottom, I’d do a swab test & “water test” on your ppm. DM if you need help.
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