ChemLab: Techniques

Glassware

Burets

Flasks, Beakers, & Graduated Cylinders

Pipets

Repipets

Volumetric Flasks

Instruments

Analytical Balance

pH Meter: Analog

pH Meter: Digital

Spectrometer: Analog

Spectrometer: Digital

Spectrometer: Scanning

Top-loading Balance

Techniques

Calorimetry

Centrifugation

Quantitative Transfer

Titration

Vacuum Filtration

ChemLab Home

Centrifugation

A centrifuge separates a heterogeneous mixture of solid and liquid by spinning it. After a successful centrifugation, the solid precipitate settles to the bottom of the test tube and the solution, called the cetrifugate, is clear.

Using a Centrifuge
Image 1
Place test tube in centrifuge holder.
Image 2
Balance with another test tube filled to the same level in the opposite holder.
Image 3
Close cover and turn knob. Centrifugation takes a minute or more. Note that you must turn off the centrifuge with the switch and wait for it to stop spinning, to effectively separate the precipitate and solution.
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