ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Halogen solutions. Three test tubes containing solutions of the halogen elements chlorine (left), bromine and iodine (right) in water (lower part) and cyclohexane (upper part). Chlorine dissolves in water, but the aqueous solubility of the halogens is generally poor. In cyclohexane, however, they dissolve readily.
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