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Distillation

Distillation is a method of separating chemical substances based on differences in their volatilities. Commercially, distillation has a number of uses. It is used to separate crude oil into more fractions. Specific uses include transport, power generation, and heating. Water is distilled to remove impurities, such as salt from sea water. Air is distilled to its components, such as oxygen for medical applications and helium for party balloons. The use of distillation on fermented solutions to produce distilled beverages with a higher alcohol content, is perhaps the oldest form of distillation.

Glassware

Distillation glassware is complex and a vast range of components exist. Please review the parts we can supply.

A rotary evaporator or rotavap, is a device used in chemical and biochemical laboratories for the efficient and gentle evaporation of solvents. The main components of a rotary evaporator are a vacuum system, consisting of a vacuum pump and a controller, a rotating evaporation flask which can be heated in a heated fluid bath, and a condenser with a condensate collecting flask.

The most common form is the benchtop rotary evaporator, though large scale (20L and 50L) versions are also available and are used by pilot plants in large pharmaceutical companies.

A centrifugal evaporator is a device used in chemical and biochemical laboratories for the efficient and gentle evaporation of solvents from multiple samples simultaneously, as well as samples contained in microtitre plates. If only one sample required evaporation, then a rotary evaporator is most often used. The most advanced modern centrifugal evaporators not only concentrate many samples at the same time, they also eliminate solvent "bumping" (sample loss by violent boiling) and can handle solvents with boiling points of up to 220 °C. This is more than adequate for the modern high throughput laboratory. In this section you will find centrifuges from Eppendorf, Hermle, Grant, and Herolab.