Learn the different types of conductometric titration
Conductivity measures the ability of the solution to transport the electrical current, adding an element to the solution (Base) is the process of conductometric titration. Change in conductivity or ions which change the concentration of substances. for example, the solution conductivity decreases if the hydrochloric acid (HCL) is titrated with sodium hydroxide (NaOH), It happens on the basis that the fast-moving ions are replaced by ions which move slow.
Principle of the conductometric titration:
Throughout a process of titration, an ion is replaced with another and the difference in ionic conductivities of these ions directly affects the overall electrolytic conductivity of the solution.
Applications of conductometric titration:
- It is used to check water pollution
- It is used to determine the salinity of the seawater
- It is used to determine the alkalinity of the freshwater
- Conductometry is used in quantitative analysis of the compound
- Used to tracing microorganisms in foodstuff.
The type of conductive titration is mentioned as follows.
- Acid-base titration
- Precipitation titration
- Replacement titration
- Redox titration (oxidation-reduction)
- Complexometric titration
By neutralizing acid or base with the known concentration of an acid or base, an acid-base titration may be used to determine the unknown concentration of an acid or base.
Precipitation titration:
The forms of titration that include the formation of precipitate throughout the titration technique are known as precipitation titrations. In precipitation titration, the titrant reacts with the analyte to form insoluble material known as a precipitate.
Replacement titration:
The replacement titration is used when the direct or back titration does not produce a sharp endpoint of the analysis. It is mainly used to titrate oxalates, benzoates, and phosphates, etc.
Redox titration:
Redox titration is the most commonly used laboratory method for identifying the concentration of unknown analytes and it depends on an oxidation-reduction reaction among the analyte and titrant.
Complexometric titration:
Complexometric titration is a type of volumetric analysis in which a colored complex is a formation to indicate the endpoint of a titration. Complexometric titrations are particularly applicable to determine the metal ions in the sample solution.
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