Figure 8. Graphical presentation of the titration of 105 ml of a 0.0048 M Zn2+ with standard 0.02 M EDTA in an ammoniacal solution (0.48 M NH3 + 0.062 M NH4Cl; pH ≈ 10.2) in presence of Eriochrome Black T as indicator. Reference horizontal lines of ordinate -logβ1’(EBT) = -3.8 and -logβ1’(EDTA) = -8.5 are also shown

From

Understanding Complexometric Titrations of Metal Cations with Aminopolycarboxylic Acids (EDTA and Analogs) within the frame of the Notion of Reactions between Groups of Chemical Species

Maria Michela SALVATORE, Francesco SALVATORE

World Journal of Chemical Education. 2015, 3(1), 5-21 doi:10.12691/wjce-3-1-2