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 solutions used typically included hydrogen peroxide, potassium iodate, and manganese sulfate, which reacted to produce starch-iodine complex changes visible in color. The experiment ...

The reaction between iodate and bisulfite in acid medium produces iodine. Solutions A (iodate ... Have students prepare to time each reaction from the instant of mixing to the appearance of the dark ...