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Close-up of valve & tip of laboratory burette

Close-up of valve & tip of laboratory burette

T875/0022

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Credit

ANDREW MCCLENAGHAN / SCIENCE PHOTO LIBRARY. ANDREW MCCLENAGHAN / SCIENCE PHOTO LIBRARY.

Caption

Close-up of the valve & tip of a laboratory burette. The image shows the lower portion of a graduated glass tube, approximately 1 metre long, used in a wide variety of applications in analytical chemistry to deliver a variable, accurate quantity of liquid. The burette is typically used in volumetric (titrimetric analysis), for example in the determination of the concentration of an acid through its reaction with a base (alkali) of known concentration (ie an acid-base titration). In this photo the burette is filled with potassium permanganate solution, which is coloured purple.

Release details

Model release not required. Property release not required.

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