05 Mar


Recirculating chillers and immersion chillers are used in the laboratory to cool reactions and maintain samples at temperatures desirable for specific reactions.  Some reactions are exothermic  -  they give off heat when the reaction occurs.  This heat can be high enough to destroy the desired product of the reaction.  A chiller will cool the reaction and maintain the optimum temperature for the reaction products.  Most recirculating chillers have a bath for samples and an inlet and outlet for tubing which can send the chilled fluid to a jacketed reaction vessel.  Recirculating chillers usually are supplied with a heater which increases the temperature range and enables finer temperature control.


For temperatures below 0°C a heat transfer fluid is necessary for the chiller.  Chiller manufacturers will recommend the appropriate heat transfer fluid for a specific temperature range.

Polyscience, Julabo and Lauda are some of the manufacturers of laboratory chillers

Robin Prymula