When is a separating funnel used

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The slopes on the plugs are slightly different and the joint will break! T he hole of the plug has to be open and match up with the holes in the stem and separatory funnel.

Before you start Perform the following tests before you start. Suspend the separatory funnel in an iron ring make sure it does not fall through! Check if the solvent leaks out at the stopcock. If this does not occur, place the stopper on top and invert the funnel. Does the lquid leak out now? If not, place the funnel back in the ring stand and remove the stopper. Open the stopcock and drain the solvent.

If the solvent does not drain, you probably used too much grease to lubricate the stopcock. Pour the solvent out and remove the stopcock plug and check the hole. If it is clogged, use a wooden applicator or piece of wire to open it up. Put it back into the stopcock, secure it and start over with the tests.

It is better to solve problems in the beginning and not with your product solution in the funnel later on.

Note that it is not necessary to dry the separatory funnel. Performing an Extraction a. Place the separatory funnel in an iron ring. Remove the stopper and make sure that the stopcock is closed.

Add the solution to be extracted using a short-term funnel. My watch list my. My watch list My saved searches My saved topics My newsletter Register free of charge. Keep logged in. Cookies deactivated. To use all functions of this page, please activate cookies in your browser. Login Register. Additional recommended knowledge. Topics A-Z. All topics. To top. About chemeurope.