All Interactive lab primer - lab techniques articles – Page 2

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Hot gravity filtration

This is the simplest kind of filtration when the solution to be filtered is poured through a filter paper in a filter funnel. The filtration of hot solutions through a funnel and fluted filter paper is often carried out as part of a recrystallisation. Gravity filtration is generally carried out ...
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Volatile product distillation

A technique to remove a volatile product from a reaction mixture to prevent further reaction taking place. Video: Volatile product distillation video
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Clamping Quickfit glassware

There are many different ways to assemble apparatus and it is important that you carefully follow the guidelines that might be in the practical script. This section illustrates the basic principles and good practice involved in putting together Quickfit glassware. Video: Clamping Quickfit glassware video
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Vacuum distillation

Vacuum distillation is a distillation carried out at reduced pressure to lower boiling points. This is particularly useful for distilling products of boiling points over 100oC. Video: Vacuum distillation video
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Heating

There are many instances when heat is needed in a laboratory practical, it is needed to reflux reaction mixtures, to distil liquids as well as help to dissolve solids in recrystallisations. The use of the appropriate method of heating is most important.