The good Dr uses ghetto equipment?
Aldrich, back in the days when the name was still unhyphenated and they would sell to most anyone who could put a money order in the mail, sold an inexpensive kugelrohr setup.
Kugelrohrs are great for quick cleaning a small amount of material but if you want to distill several hundred ml or more you should use a more usual distilling rig.
Post 181544 (https://www.thevespiary.org/talk/index.php?topic=9089.msg18154400#msg18154400)
(terbium: "Re: Kugelrohr distillation.", Methods Discourse)
Post 182306 (https://www.thevespiary.org/talk/index.php?topic=9089.msg18230600#msg18230600)
(terbium: "Re: Kugelrohr distillation.", Methods Discourse)
i found a video for you guys....
http://www.chem.cuhk.edu.hk/labtech/Videoclip250/VACUUM_DISTILLATION.wvx (http://www.chem.cuhk.edu.hk/labtech/Videoclip250/VACUUM_DISTILLATION.wvx)
To bee or not to bee, that IS the question.
Atropos: I am not familiar with the coffee dispenser you are talking about - could you link a picture?
What kind of distillation temperatures could be expected from such a setup?
BTW, the above animation now also hosted here: https://www.thevespiary.org/rhodium/Rhodium/archive/vacuum.distillation.wmv (https://www.thevespiary.org/rhodium/Rhodium/archive/vacuum.distillation.wmv)
It looks like the one chicken posted, here's a link to the exact make..
http://www.comforthouse.com/comfort/12cupcof.html (http://www.comforthouse.com/comfort/12cupcof.html)
It was cut down just below the handles, and had the coil unwound and lifted up. Apparently there's a built in thermostat, I didn't see a variac around it. No cooling was used, ran primary bulb into the heating chamber, 2 secondaries and a take off. The w/washer was a 2.5" dia motor 4" long that moved an arm up and down, which then rotated the bulbs.
I thought of several improvements, a teflon bushing in the slot on the urn would be a good idea for turning. A hair dryer or hot air gun would probably be more effective/efficient for heating things up. The pump went through a dry ice trap... "Neccessary for good vaccuum" was the quote...
He had remarked earlier that this was how he got those 5ml quantities of final product to distill to water white oils in the book...
It was quite impressive!
Infinite Radiant Light - THKRA