Selecting a Lab Condenser on Amazon.com
A lab condenser is laboratory glassware that uses water or air to cool the vapors from hot liquids. In some types of water-cooled lab condensers, the vapor in an inner tube or coil is cooled by water or another coolant flowing through an outer tube, or jacket. Other designs circulate coolant through an inner coil to cool vapors within the jacket. Water-cooled types are the West, Allihn, and Liebig condenser, which are tube-style, and the Dimroth, Friedrichs (also known as a cold finger), and Graham condenser, which are coil-style. Air-cooled condensers, such as Vigreux, Snyder, or Widmer columns, have a single tube in which vapors condense as they are cooled by the outside air. Reflux and distilling are the most common applications for a lab condenser. A reflux condenser returns condensate to a liquid that is being heated for an extended period. In distilling, the condensate from a heated liquid in one vessel is collected in a second vessel. While metal is used for condensers in HVAC (heating, ventilation, and air conditioning) equipment, a glass condenser is the standard in a lab. The overall height of a lab condenser may be a consideration, especially in tight spaces such as fume hoods. Lab condensers are commonly used in laboratory experiments and procedures, and in distilleries.