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Why does Wijs solution need to be stored in the dark for 30minutes?
Wiki User
∙ 14y ago
because sunlight can affect its stability
Wiki User
∙ 14y ago
The Wijs solution contains iodine, which is light-sensitive and can undergo photodegradation upon exposure to light. Storing it in the dark helps to prevent this degradation and ensures the stability and accuracy of the solution for the iodine value determination.
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