CLASSIFICATION OF REACTIONS IN TITRIMETRIC ANALYSIS -acidimetry and alkalimetry, Complex formation, Precipitation, Oxidation – reduction reactions

The reactions employed in titrimetric analysis fall into four main classes.

1. Neutralization reactions or acidimetry and alkalimetry.
- involve the combination of hydrogen and hydroxide ions to form water.

2. Complex formation reactions.
- depend upon the combination of ions, other than hydrogen and hydroxide ions, to form a soluble slightly dissociated ion or compound.

3. Precipitation reactions
- depend on the combination of ions to form a simple precipitate.

4. Oxidation – reduction reactions
- involve he change of oxidation number or transfer of electrons among the reacting substances. The standard solutions are either oxidizing or reducing agents.