J & R Photos

38352RKP

Iodine test for starch. Test tubes before (left) and right (after) showing a black colour that is the positive result of the test for starch using iodine. The starch is a long coiled molecule. Iodine combines with the starch and ends up in the coil, which is why the iodine turns from light brown to black.

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Image Size: 4256x2832 / 1.0MB; starch analysis analytical apparatus bread carbohydrate ch Science Experiment
Contained in galleries: Science

Iodine test for starch. Test tubes before (left) and right (after) showing a black colour that is the positive result of the test for starch using iodine. The starch is a long coiled molecule. Iodine combines with the starch and ends up in the coil, which is why the iodine turns from light brown to black.