Using a Mechanical Cold Trap with Vacuum Ovens

They also work great for other things…

Scored this haake-110 for $800. It only got down to -30 until I replaced the condenser fan. Now it freezes my hexane without hesitation. I also get no detectable vapors from my dry scroll pump.

It was kind of to good of a deal to pass up otherwise I would have picked a different temp, but I use with with my vacuum oven and rotary dryer.

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