IODOMETRY AND IODIMETRY TITRATION PDF

Lifestyle Difference between Iodometry and Iodimetry Iodometry and iodimetry tend to related to each other due to the presence of iodine. These terms are commonly used in titration by the use of iodine to test the concentration of an analyte under investigation. The core difference between iodometry and iodimetry is iodometry is an indirect titration method while iodimetry is a direct titration method. What Is Iodometry? Iodometry is an indirect titration method where the iodine used was produced prior to redox titration is quantified through a separate titration.

Author:Kagasida Kigazragore
Country:Montserrat
Language:English (Spanish)
Genre:Finance
Published (Last):18 March 2012
Pages:35
PDF File Size:2.39 Mb
ePub File Size:11.77 Mb
ISBN:520-3-44206-488-2
Downloads:81292
Price:Free* [*Free Regsitration Required]
Uploader:Murn



In fact, both these terms refer to different methods of using Iodine in titrations to determine the concentration of an analyte under investigation. They differ 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. What is Iodometry 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 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.

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 as the Iodine breaks down to Iodide ions, the colour disappears.

Starch granules stained with iodine — through microscope What is Iodimetry 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. Difference Between Iodometry and Iodimetry Definition 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. Route of Titration An Iodometric titration is an indirect method of analysis.

Iodimetry is a direct analysis method. In Iodimetry, only one redox reaction process takes place. Behaviour of Iodine In Iodometry, Iodine gets oxidized first and then reduced by a reducing agent. In Iodimetry, Iodine only gets reduced. Usage Iodometry is more commonly seen in experiments. Iodimetry is less common when compared to Iodometry. CC BY 2.

HINDUSTANI SANGEET KRAMIK PUSTAK MALIKA PDF

IODOMETRIC AND IODIMETRIC TITRATION PDF

As the name implies, iodine is involved. The technique of iodometry is commonly used in experiments where the amount of oxidizing agents in a water body needs to be quantified. This makes it the most suitable method since hypochlorite or peroxide, found in bleach, is a strong oxidizing agent. The end point is determined using starch as indicator which forms a blue-black colour with iodine and fades to colourless when the reaction is complete. Iodometry is the quantitative analysis of a solution of an oxidizing agent by adding an iodide which reacts to form iodine, which is then titrated.

CLEMENTE DE ALEJANDRIA EL PEDAGOGO PDF

Difference between Iodometry and Iodimetry

In fact, both these terms refer to different methods of using Iodine in titrations to determine the concentration of an analyte under investigation. They differ 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. What is Iodometry 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 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.

COMPLICACIONES DE LA ARTROPLASTIA DE RODILLA PDF

Difference Between Iodometry and Iodimetry

Summary What is Iodometry? In iodometry, iodides react with another oxidizing agent in an acidic medium or neutral medium. When this reaction takes place, iodide we add iodide in the form of KI oxidizes to iodine and the other species will undergo reduction by iodide. Then we can titrate the released iodine with another species. This titrating species is a standard solution of a reducing agent, which is capable of reducing iodine back to iodide form. Usually, we use a standard thiosulphate solution for this. For example, if we want to quantify the amount of chlorine dissolved in a mixture, the following is the method to carry out an iodometric titration.

Related Articles