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Chemistry · Glossary

What is Cannula transfer?

Definition 33.4 University Chemistry — Year 3 · Chapter 33 — Lab Techniques III: Research Practice

A cannula transfer moves an air-sensitive liquid from one sealed vessel to another through a long double-tipped needle, driven by a small overpressure of inert gas in the first vessel.

A cannula transfer: the cannula’s lower tip dips into the liquid of the source flask; inert gas let into the source pushes the liquid through the cannula into the receiver, which is vented through a needle to the bubbler.
A cannula transfer: the cannula’s lower tip dips into the liquid of the source flask; inert gas let into the source pushes the liquid through the cannula into the receiver, which is vented through a needle to the bubbler.
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