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www.reference.com/article/iodine-indicator-starch-c0d503e1d1e9e94

Iodine indicates the presence of starch in a solution by altering the energy level spacing in the amylose component of starch, creating an intense blue color. This energy change allows amylose to absorb visible light.

www.reference.com/science/iodine-turn-starch-blue-70931cf7c358f2e2

Starch when mixed with Iodine turns a deep shade of blue because starch contains amylose. Amylose is a soluble component of starch as well as other carbohydrates.

www.reference.com/article/iodine-stain-starch-ce45c788e91b24d3

Iodine stains starch because of the chemical reaction between it and the polysaccharides in starch molecules. This reaction turns the starch a deep blue hue. This phenomenon is called Lugol's reaction for starch. Iodine is useful in laboratories and medical offices because it also reacts with many o

www.reference.com/article/iodine-react-starch-66892d08fbad708e

When iodine and starch interact, iodine molecules become arranged within the starch molecules in a linear fashion. The visible end result of this arrangement is the appearance of a blue-black coloration.

www.reference.com/article/iodine-react-starch-water-d27428b3118f0030

Iodine reacts with starch in water to produce an intensely blue color. Beta amylose, which is a form of soluble starch, traps iodine ions within its highly coiled structure to achieve this effect.

www.reference.com/science/iodine-called-indicator-33e5e26c488f5c8c

Iodine is known as an indicator because it changes color in the presence of starch and several other molecules. Iodine can also be used to track iodide and iodine in its elemental form.

www.reference.com/article/indicator-starch-4b515728dca3a1fb

In a solution, iodine ions indicate the presence of starch by changing the color of the solution from yellow to intense blue. Iodine ions are typically added to a solution as potassium iodide.

www.reference.com/science/following-largest-molecules-starch-iodine-water-83b2737e19f2d2bf

Starch has the largest molecule out of all of starch, iodine and water. This is because it is composed of numerous units of glucose, so it's technically a polymer.

www.reference.com/article/uses-iodine-2d0df49384f3f550

According to WebMD, iodine is commonly used to prevent iodine deficiency and disinfect wounds. It can also be used to protect against radiation, treat ulcers and purify water.

www.reference.com/article/iodine-made-2fbd063d6b53830

Iodine is an element and, therefore, it is not strictly "made" of anything but iodine atoms, according to Jefferson Lab. Iodine is a solid at room temperature and occupies position 53 on the periodic table. It is classed as a member of the halogen group.