Skin testing and blood testing to look for allergies ... allergies could put you at particular risk for a reaction to iodine contrast, this is not true.

Organic solvents with densities greater than and less than that of the aqueous solution are used to extract the iodine. The aqueous solution of ... Pour solution of blue food color into one test tube ...

The iodine test can also be used with a microscope to ... Sudan III solution is flammable as it is dissolved in alcohol. Avoid contact with skin and eyes.