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 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / McClenaghan, Andrew |
Taille de l’image : | 3279 px × 4833 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |