Non-polar solutes dissolve in non-polar solvents.
Naphthalene is a nonpolar compound. Thus, it is insoluble in highly polar solvents like water. Non-polar solutes do not dissolve in polar solvents like water because they cannot compete with the strong attraction that the polar solvent molecules have for each other. However, it is soluble in nonpolar and slightly polar solvents such as benzene, toluene, carbon disulphide.
- Naphthalene is a white, volatile, solid polycyclic hydrocarbon with a strong mothball odour.
- Naphthalene is obtained from either coal tar or petroleum distillation.
- Naphthalene is used in the manufacture of plastics, resins, fuels, and dyes.