Organic solvents with densities greater than and less than that of the aqueous solution are used to extract the iodine. The aqueous solution of food color is blue. Iodine in water is yellow, and when ...

The technique of extraction is used to separate an aqueous solution of copper (II) chloride and iodine. Organic solvents with densities greater than and less than that of the aqueous solution are used ...

To improve the energy density of aqueous batteries, researchers used a mixed halogen solution of iodide ions ... transferring I-to iodine element (I 2) and then to iodate (IO 3-).