Where Can I Find Absorbance Data for Iodine-Starch Complex at 570nm?

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SUMMARY

The discussion centers on the search for absorbance data for the iodine-starch complex at 570nm, specifically after conducting the persulfate variation of the iodine clock reaction. The user seeks results that can be accessed online due to the lack of a visible spectrophotometer. A reference is provided to a specific article from the Journal of Biological Chemistry, which may contain relevant data.

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  • Understanding of absorbance spectroscopy principles
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  • Research absorbance data for iodine-starch complexes in scientific journals
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Chemistry students, researchers in analytical chemistry, and anyone conducting experiments involving absorbance spectroscopy and iodine-starch complexes.

getfirefox
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Hi everyone.

I don't have access to a visible spectrophotometer to do this so I'm looking for results on the internet.

I just did the persulfate variation of the iodine clock and I need absorbance spectroscopy results for the blue/black complex that is formed with the iodine and starch at the end. I know the wavelength of the spectrophotometer should be set at 570nm (yellow orange colour) as this is the complementary colour of purple. This is all I know though.

Anyone know where I might find results for this?

Cheers.
 
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