Iodometry, also known as iodometric titration, is a method of volumetric chemical analysis, a redox titration where the appearance or disappearance of. Q What is the difference between Iodimetric titrations and Iodometric titrations? Ans. IODIMETRIC TITRATIONS When an analyte that is a reducing agent (like. Iodometry is an indirect titration method whereas iodimetry is a direct titration method. This is the main difference between Iodometry and.
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As the names Iodometry and Iodimetry suggest, they relate to a process where Iodine is involved.
In fact, both these terms refer to different methods of using Iodine in titrations to determine the concentration of an analyte under investigation. They iodoometry in their approach.
Iodometry is an indirect titration method whereas iodimetry is a direct titration method. This is the main difference between Iodometry and Iodimetry. As mentioned above, Iodometry is an indirect method.
The technique of Iodometry is commonly used in experiments where the amount of oxidizing agents in a water body needs to be quantified.
What is the difference between iodometry and iodimetry? – Quora
What happens here is, an excess amount of Iodide solution typically Potassium Iodide is mixed with a sample of the water that needs to be tested. Due to the oxidizing agents present in the water body, the Iodide ions get oxidized to Iodine, while the oxidizing agents get reduced.
This is the initial redox reaction. Then the produced Iodine is titrated with a reducing agent such as sodium thiosulfate solution. Here, the Iodine reduces to Iodide ions while the thiosulfate ions get oxidized further. iodimetrg
Difference Between Iodometry and Iodimetry
This is the second redox reaction and it is the reaction used for the titration. This is performed in the presence of a starch indicator to make it easier to recognize the end point.
Iodine forms a deep-blue colour complex with starch and iodometrj the Iodine breaks down to Iodide ions, the colour disappears. Starch granules stained with iodine — through microscope. As mentioned in the definition, this is a direct titration method.
The analyte under investigation needs to be the reducing agent. And this is directly titrated with a standard Iodine solution at the presence of a suitable indicator.
Therefore, by determining the end point of the reaction, equations can be derived to obtain information of the stoichiometry and other necessary relationships between the reducing agent and Iodine which acts as the oxidizing agent in this case.
Therefore, in this case, only one redox reaction takes place unlike in the case of the Iodometric titration. However, it is more common to use Iodometric methods for analysis rather than Iodimetric methods. In Iodometric titrations, the Iodine which has been produced as a result of a previous redox reaction is been titrated with a reducing agent such as thiosulfate ions.
In Iodimetric titrations, an Iodine solution is directly titrated with a reducing solution.
Difference Between Iodometry and Iodimetry l Iodometry vs Iodimetry
An Iodometric titration is an indirect method of analysis. In Iodimetryonly one redox reaction process takes place. In IodometryIodine gets ttiration first and then reduced by a reducing agent.
Iodometry is more commonly seen in experiments. Iodimetry is less common when compared to Iodometry. Licensed under Public Domain via Commons.