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Starch indicator

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Title: Starch indicator  
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Subject: Titration, Briggs–Rauscher reaction, Iodine, Redox titration, Starch
Collection: Chemical Tests, Laboratory Techniques
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Starch indicator

thiosulfate, in order to remove most of the iodine before the starch is added. This is due to the insolubility of the starch-iodine complex which may prevent some of the iodine reacting with the titrant. Close to the end-point, the starch is added, and the titration process is resumed taking into account the amount of thiosulfate added before adding the starch.

See also

External links

  • How does starch indicate iodine? General Chemistry Online

References

  • Titrations.info: Potentiometric titration--Solutions used in iodometric titrations
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