Fundamental Organic Chemistry
Fundamental Organic Chemistry
Fundamental Organic Chemistry
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After venting, close the stopcock, gently shake or swirl the mixture in the<br />
inverted funnel, then re-vent the fumes. If excessive pressure build-up is not<br />
observed, the separatory funnel and its contents may be shaken up and down<br />
vigorously in a somewhat circular motion for 2-3 minutes so that the layers are<br />
thoroughly mixed. Vent the stopcock several times during the shaking period.<br />
After completing the shaking, vent the stopcock one last time. Place a large<br />
Erlenmeyer flask under the stem of the separatory funnel in case the stopcock<br />
should develop a leak. Allow the separatory funnel to sit until the layers have<br />
separated.<br />
4) Separation the layers. Before proceeding, make sure the stopper has<br />
been removed. (It is difficult to drain the lower layer from a stoppered<br />
funnel. Because a vacuum is created in the top portion of the funnel.)<br />
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