Using a Chemical or Physical Property to Monitor a Titration
When a chemical or physical property such as pH or chemical potential is used to determine the end-point, property versus volume data should be recorded and plotted. Therefore, the titrant should be added in small portions so that the property can be measured and recorded for each volume delivered. The volume increment should be small enough that the end-point can be accurately determined. Initially, the increment could be as large as a milliter. However, when slight changes in the property are noted, the titrant should be added dropwise between measurements.