What scenario would this get used in?
I knew an older chemist who used one on a small 2L still that he used for sample prep and R&D, however that was in the 80s.
I’ve also seen them occasionally in textbooks/papers from that era that were focused on molecular distillation, but they were educational models used to show how diffusion pumps operate.
Personally? I would only buy one as a centerpiece, I went to school for glassblowing before I went for science and have a great love and appreciation for scientific glass. In practicality I prefer stainless equipment to glass if available.
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What is the heat source for this, an external recirculator?
Most likely a mantle
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