Potassium iodide in an ascorbic acid titration with iodine solution?

  • Thread starter flumbie
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In summary, Iodine Solution, also known as Lugol's Solution, is a chemical compound commonly used in laboratory experiments and as an antiseptic. It is made up of iodine and potassium iodide in water and has strong antimicrobial properties. In laboratory experiments, it is used as a staining agent and an indicator in chemical reactions. As an antiseptic, it is effective in treating wounds and less likely to cause skin irritation. However, it should not be ingested as it can be toxic in large amounts and should be stored in a cool, dry place away from direct sunlight in a tightly sealed container.
  • #1
flumbie
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When performing an ascorbic acid titration with iodine solution, iodine and potassium iodide are used. Does the potassium iodide react with the ascorbic acid as well or only the iodine?

Thanks
 
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  • #2
The reactant is either the iodine or the iodide - I'm no familiar currently. Is the ascorbic acid being reduced? Or is it being oxidized? (I should not butt-in here, since someone familiar with the analytical method would answer this more properly).
 
  • #3
iodine is the reactant, not iodide. Iodine is not very soluble in water but it forms a water-soluble complex, I3-, with iodide.
 

1. What is Iodine Solution?

Iodine Solution, also known as Lugol's Solution, is a chemical compound made up of iodine and potassium iodide in water. It is commonly used in laboratory experiments and as an antiseptic.

2. What is the purpose of Iodine Solution in laboratory experiments?

Iodine Solution is often used as a staining agent in microbiology experiments to help visualize bacteria and other microorganisms under a microscope. It can also be used as an indicator in chemical reactions.

3. What are the benefits of using Iodine Solution as an antiseptic?

Iodine Solution has strong antimicrobial properties, making it an effective antiseptic for treating wounds, cuts, and scrapes. It is also less likely to cause skin irritation compared to other antiseptics.

4. Can Iodine Solution be ingested?

No, Iodine Solution should not be ingested as it can be toxic in large amounts. It is meant for external use only. Ingestion of Iodine Solution can lead to stomach upset, nausea, and other harmful side effects.

5. How should I store Iodine Solution?

Iodine Solution should be stored in a cool, dry place away from direct sunlight. It is also important to keep it out of reach of children and pets as it can be harmful if ingested. Additionally, it should be stored in a tightly sealed container to prevent evaporation.

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