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Iodine (Lugol's) Biological Stain Solution, 100 ml

Ages 12+
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This Lugol's iodine solution stains carbohydrates in plant & animal specimens brown or blue-black & stains glycogen red. An aqueous solution of 1.8% iodine & 3.0% potassium iodide. Lab grade; not for food or medical purposes. Read More

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Lugol's iodine solution is a starch indicator, chemical reagent, and biological stain. This chemical stains carbohydrates in plant and animal specimens brown or blue-black and stains glycogen red. This 100 ml bottle is an aqueous solution of 1.8% iodine and 3.0% potassium iodide.

This iodine solution is water-based. Iodine (tincture) is commonly available in drug stores, is alcohol-based, and may be unsuitable for some experiments calling for iodine solution.

This iodine is laboratory grade and cannot be used for food or medical purposes.

Formula I3K
Grade Laboratory
Form Solution
Density 4.94 g/cm3
CAS # Mixture
DOT Classification Non-Regulated
Storage Code White
Alternate Name Lugol's Iodine
Common Use Testing for starch


Also available in a smaller quantity (Lugol's Iodine Solution, 30 ml) for your science experiment needs.


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