Figure 7. Second derivative calculated for points starting from the first derivative for a titration of sodium hydroxide with hydrochloric acid

From

Qualitative Measurement of pH and Mathematical Methods for the Determination of the Equivalence Point in Volumetric Analysis

Andrea Checchetti, Jessica Lanzo

World Journal of Chemical Education. 2015, 3(3), 64-69 doi:10.12691/wjce-3-3-2