Lab glassware condensers are components used to cool the hot vapors that result from boiling or heated liquids. There are numerous varieties of condensers: they can be divided by application type, by cooling method, and by size. Almost all condensers are made of borosilicate glass, which is ideal for the high temperatures to which chemistry glass apparatus are often subjected.
The two most common types of chemistry condensers are distillation and reflux. The condenser required differs based on this application: distillation condensers separate the condensed liquid into a separate vessel, while reflux condensers create a loop by returning the condensate to the original heated liquid.