Burette
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A burette is a lab device used in analytical chemistry for the dispensing of variable, measured amounts of a chemical solution.
Contents
General
Burettes come in two main categories:
- Volumetric burette: delivers measured volumes of liquid.
- Weight burette: delivers measured weights of liquid.
Types
Automatic burette
Consist of a specially designed burette, fitted with a flat bottom flask, which contains the solution. Filling the burette is done by squeezing a small bulb pump and covering the lower air vent with your finger.
Electronic
Uses a computer to measure and release exact amounts of solution.
Straight burette
Consists of a long glass tube, with a glass or PTFE stopcock at one end. Filling the burette is done manually, from the top.
Maintenance
Burettes should be cleaned often.
