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Stirring Too Rapidly

Stirring too rapidly causes splashing and may lead to loss of sample.

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Movie Size - .4 MB
Movie Duration - 9 Seconds
File - CCA6/MOVIES/Labcurrent/hp_ms/01262300.MOV

The demonstration on this page shows a technique that should not be used by undergraduate chemistry laboratory students.

Discussion

A cool magnetic stirring plate is positioned below the container and the stirring plate is turned on. The stirring rate should be adjusted to thoroughly mix the solution. Use a low setting at first, and increase the rate of stirring if necessary. Do not stir the solution too rapidly. High stirring rates can result in splashing or the magnet can be spun off-center (and poor mixing will result).

Narrative

Stirring too rapidly causes splashing and may lead to loss of sample.