Note:  Do not rely on this information. It is very old.


Quinone. The term quinone is a general one applied to all benzene derivatives in which two oxygen atoms take the place of two atoms of hydrogen. According to the relative position, different classes of quinones exist. When no prefix is added, however, quinone generally means Benzo-quinone, which is obtained by the action of oxidising agents upon aniline and other benzene compounds. It forms crystals of golden yellow colour, which melt at 116°, has a peculiar odour, and is easily soluble in all ordinary solvents. By reduction it yields the compound hydroquinone, which is largely employed as a developer in photography.

“Not a drop of rain falls in the sandy desert or on the barren rock, however useless it may seem to be, that is not seen to be of value by God, and that is not designated to accomplish some important purpose there.”
–Albert Barnes, Notes, Job 38:26