Über die dilatometrisch indizierten Titrationen

The changes of the volume which appear during the titration of some metall ions with Titriplex III are continuously controlled by means of a dilatometer and are used for the determination of the end point of the reaction. Over a range of 0.1<×<15 mMol all determinations can be reproduced with a standard deviation of <0.2%. For the complex formation between Mg²⁺ and Titriplex III the dependence of the change of volume of the overall reaction on the concentration is discussed.