Simba1996
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Does anyone know what filter to use when finding the absorption of iodine in a solution? Every website says something different like to use the brown filter (iodine at its peak of absorption since it's brown) and some say to use a blue filter? What wavelength should I use? What colour filter would I use for iodine absorption?

This is for my individual investigation. I'm looking at the reaction between propanone and iodine catalysed by hydrogen ions.

Thank you
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Hi there,

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Borek
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Why don't you start with recording full visible spectrum and selecting the best wavelength?
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