The Claisen adaptor is a multi-purpose item of standard taper glassware. It is used in situations which require more than one outlet from a round bottom flask. For instance, in a reflux of a reaction mixture, sometimes it is necessary to condense the rising vapors and add reactants to the mixture at the same time. In this situation, one of the upper Claisen connectors would go to a condensor and one to a dropping or separatory funnel.

Location: student drawer equipment.

Cost: $19.70