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Category: Scientific testing

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What is the Color if a Sample is Positive for an Iodine Test?

3 min read
Over 50% of the food we consume contains some form of starch, making the iodine test a fundamental scientific procedure. A positive iodine test, used to detect the presence of starch, is identified by a dramatic color change from the original yellowish-brown iodine solution to a deep blue-black.