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Air-free technique
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Air-free techniques refer to a range of manipulations in the chemistry laboratory for the handling of compounds that are air-sensitive. These techniques prevent the compounds from reacting with compon
An ordinary glovebox, showing the two gloves for manipulation, with airlock on the right.
An ordinary glovebox, showing the two gloves for manipulation, with airlock on the right.
A Schlenk line with four ports.
A Schlenk line with four ports.
A cannula is used to transfer THF from the flask on the right to the flask on the left.
A cannula is used to transfer THF from the flask on the right to the flask on the left.
After being refluxed with sodium and benzophenone to remove oxygen and water, toluene is distilled under inert gas into a receiving flask.
After being refluxed with sodium and benzophenone to remove oxygen and water, toluene is distilled under inert gas into a receiving flask.
Schlenk flask
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A Schlenk flask, or Schlenk tube, is a reaction vessel typically used in air-sensitive chemistry, invented by Wilhelm Schlenk. It has a side arm fitted with a PTFE or ground glass stopcock, which allo
Air-free technique
…technique involve the use of a glovebox and a Schlenk line, although some rigorous applications use a high-vacuum line. In both methods, glassware (often Schlenk tubes) are pre-dried in ovens prior to use. They may be flame-dried to remove adsorbed water. Prior to coming into an inert atmosphere, vessels are further…
Three Schlenk flasks with 500, 250 and 100 mL volume on cork rings.
Three Schlenk flasks with 500, 250 and 100 mL volume on cork rings.
A pear-shaped Schlenk flask. The flask's sidearm contains a greased stopcock valve, and the flask is capped with a Suba•Seal septum that has not been
A pear-shaped Schlenk flask. The flask's sidearm contains a greased stopcock valve, and the flask is capped with a Suba•Seal septum that has not been turned down.
A heavy walled, tube shaped, Schlenk bomb fitted with a large bore plug valve designed for high temperature closed system reactions.
A heavy walled, tube shaped, Schlenk bomb fitted with a large bore plug valve designed for high temperature closed system reactions.
A Straus flask often called a solvent bomb. "Solvent bomb" is any Schlenk bomb dedicated to storing solvent. It is the construction of the flask neck
A Straus flask often called a solvent bomb. "Solvent bomb" is any Schlenk bomb dedicated to storing solvent. It is the construction of the flask neck which makes a Straus flask unique.