Iodine solubility. Iodine (I2) molecule has a covalent non-polar bond. It is only sparingly soluble in polar solvents and is soluble in non-polar solvents. Here iodine solubility in different solvents is demonstrated, left to right: water (H2O), cyclohexane (C6H12), dichloromethane (CH2Cl2), and aqueous solution of potassium iodide (KI). In water, iodine stays at the bottom of the test tube and shows only a faint brown colour. Iodine dissolves in non-polar cyclohexane and dichloromethane showing violet and red colours, respectively. Iodine also dissolves in aqueous solution of potassium iodide due to formation of the triiodide ion (I3-), producing red-brown colour. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 5137 px × 3427 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |