The melting point of naphthalene is approximately between 79 and 82 degrees Celsius. The physical state of this chemical is as a white solid that is insoluble in water. This chemical also has a boiling point between 217 and 218 degrees Celsius.
The chemical formula making up naphthalene is 10 parts carbon and eight parts hydrogen, and it has a vapor density of 4.4. Naphthalene is also considered to be a flammable solid, and it is a potential cause for cancer. The chemical is known to cause adverse effects when exposed over a long period of time in aquatic environments.