What is the indicator used in the titration of peroxides to determine the peroxide value and what is the color at the endpoint?
Understand the Problem
The question is asking for the specific indicator used in the titration of peroxides and the color that appears at the endpoint of the titration. This involves chemistry knowledge related to titration methods.
Answer
Starch, colorless.
The final answer is starch, colorless.
Answer for screen readers
The final answer is starch, colorless.
More Information
In peroxide titration, starch acts as an indicator by forming a blue complex with iodine. At the endpoint, when iodine is fully reduced, the solution becomes colorless.
Tips
A common mistake is assuming the endpoint is blue; however, the endpoint occurs when the blue turns colorless.
Sources
- The web page with info on - Example Source - vitas.no
- Is there any other indicator apart from starch in peroxide value ... - researchgate.net
- Peroxide Value | PDF | Titration | Chemistry - Scribd - scribd.com
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