August 24, 2019, 06:47:01 PM
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Topic: Potassium Iodide in electrochemical cell  (Read 100 times)

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Offline whitechurch

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Potassium Iodide in electrochemical cell
« on: July 27, 2019, 06:14:16 PM »
I am having problems with an electrochemical cell used for measuring ozone.

Cathode is a 1% KI solution and the anode is KI saturated. Usually background current is <0.1 microamps. However since changing from 99.5% analaR KI to 99.9% ACS KI the background current is about 0.35 microamps.

Anyone have any ideas why this may be the case?

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