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All 2 posts   Subject: A Kugelrohr Oven from a Rotary Evaporator   Please login to post   Down

 
    Rhodium
(Chief Bee)
11-03-04 12:07
No 539416
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      A Kugelrohr Oven from a Rotary Evaporator
(Rated as: excellent)
    

A Kugelrohr Oven from a Rotary Evaporator
R. Somananthan and L. Hellberg
J. Chem. Educ., Vol. 61, No. 1, p. 77 (1984)

A simple modification of the rotary evaporator transforms it into a Kugelrohr oven, an extremely useful apparatus fur distilling small volumes of high-boiling compounds from bulb to bulb. Although this apparatus comes in different price ranges, the Aldrich version is simple and inexpensive; unfortunately, the motor has to be operated by vacuum or pressure and can be inconvenient at times.

Here we report simple method of converting the normal rotary evaporator bearing a 24/10 or 24/14 adapter. Moving the evaporator into a horizontal position transforms it into a simple Kugelrohr oven-like device (see figure). Distillation is performed by operating the rotation at the lowest speed possible. With this setup we have been able to attain a pressure as low as 1 mmHg.

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Further kugelrohr construction tips:
Post 329280 (ClearLight: "Kugel-Rohr ghetto setup", Methods Discourse)
Post 181888 (LaBTop: "Kugelrohr distillation setup [Images]", Methods Discourse)

The Hive - Clandestine Chemists Without Borders
 
 
 
 
    randolph_carter
(Hive Bee)
11-03-04 20:59
No 539494
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      interesting setup.....     

this particular setup for the rorovap would bee extremely useful for the "stimulant forum" swarm........

someone could assemble this near the moon titan and accomplish the feat of degakking pillstock via a simulated short path distillation of PE or eph .......

nah.......
there are none of those types of riff raff around here now are there????????

thought not......

"remember little ones, love is real,not fade away, so pass some ammo on today......"
 
 

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