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The top of the cylinder is a fit with the bottom of the reflux condenser (5).
A reflux condenser is placed atop the extractor.
An inverted funnel connected to the aspirator should be fitted over the reflux condenser.
Drying tubes are usually fitted on top of the reflux condenser, allowing the pressure to be relieved while excluding atmospheric moisture.
The reflux condenser contains water heated at 60 C, which condenses unreacted propanol, but allows propionaldehyde to pass.
Equip a 250 ml 2- (or 3-) necked flask with reflux condenser, pressure-equalising addition funnel and magnetic stirrer bar.
Flush a round-bottomed flask (25 ml) containing a magnetic stirrer bar and fitted with a reflux condenser with nitrogen for 2-3 min.
While the flask is connected to the line under a positive pressure of inert gas, the septum can be replaced with other apparatus, for example a reflux condenser.
Researchers or undergraduate staff who use city water for cooling in reflux condensers, solvent stills, laser instruments, etc. must adhere to the following Chemistry Department Policies.
The Allihn condenser or "bulb condenser" or simply "reflux condenser" is named after Felix Richard Allihn.
I recall the spots on the ceiling in the organic chemistry lab, signed by students whose reaction mixture went out of control and gushed to the ceiling through a reflux condenser.
It is used in combination with a reflux condenser and a batch reactor for continuous removal of the water that is produced during a chemical reaction performed at reflux temperature.
Recent measurements are reported on the application of coiled wire inserts to the enhancement of the performance of vent condensers and the potential benefits for reflux condensers are inferred.
Since the reactive instability is accentuated by higher temperatures, the search for stabilizing additives was conducted by heating trichloroethylene to its boiling point in a reflux condenser and observing decomposition.
A glass T-piece adaptor should be fitted to the top of the reflux condenser, one arm connected to the nitrogen supply and the other to a mineral oil (Nujol) bubbler (a Dreschel bottle is best).
To maintain the resultant "dry" environment it is usually sufficient to connect a guard tube filled with calcium chloride to the reflux condenser to slow moisture re-entering the reaction over time, or connect an inert gas line.
By day, Mr. Ford is a scientific glass blower for a large pharmaceutical company, creating and repairing medical apparatus — full-jacketed two-neck flasks, custom-jacketed reactors, reflux condensers, hydrolysis tubes — vital to researchers combating diseases like cancer.
Reaction flasks, which are usually spherical (i.e. round-bottom flask) and are accompanied by their necks, at the ends of which are ground glass joints to quickly and tightly connect to the rest of the apparatus (such as a reflux condenser or dropping funnel).