Mixing cylinders ( B in the picture ) have ground glass joints instead of a spout, so they can be closed with a stopper or connect directly with other elements of a manifold.
22.
This reaction is also a convenient way to remove the manganese dioxide precipitate from the ground glass joints after running a reaction ( i . e ., an oxidation with potassium permanganate ).
23.
In contrast when using a Schlenk line the " purge-and-refill " is applied directly to the reaction vessel through a hose or ground glass joint that is connected to the manifold.
24.
A glass stopper is often called a " ground glass joint " ( or " joint taper " ), a rubber stopper is sometimes called a " rubber bung ", and a cork stopper is called simply a " cork ".
25.
At the opening ( s ) at top of the neck of some glass flasks such as round-bottom flasks, retorts, or sometimes volumetric flasks, there are outer ( or female ) tapered ( conical ) ground glass joints.
26.
If you have the time, do you think you could incorporate some of your knowledge about the difference of these two standards into the Ground glass joint # Conically-tapered joints article ?-- Alf 09 : 44, 9 January 2007 ( UTC)
27.
The conically tapered ground glass joints typically have a 1 : 10 taper and are often labeled with a symbol consisting of a capital "'T "'overlaid on a capital "'S "', meaning " Standard Taper ".
28.
In some situations, however, Schlenk bombs are less convenient than standard Schlenk flasks : they lack an accessible ground glass joint to attach additional apparatus; the opening provided by plug valves can be difficult to access with a spatula, and it can be much simpler to work with a septum designed to fit a ground glass joint than with a Teflon plug.
29.
In some situations, however, Schlenk bombs are less convenient than standard Schlenk flasks : they lack an accessible ground glass joint to attach additional apparatus; the opening provided by plug valves can be difficult to access with a spatula, and it can be much simpler to work with a septum designed to fit a ground glass joint than with a Teflon plug.
