The term hydroxyl group is used to describe the functional group –OH when it is a substituent in an organic compound. Organic molecules containing a hydroxyl group, such that the hydroxyl has a negative inductive effect, are known as alcohols (the simplest of which have the formula CnH2n+1–OH).
The hydroxyl radical, OH, is the neutral form of the hydroxide ion. Hydroxyl radicals are highly reactive and consequently short-lived; however, they form an important part of radical chemistry. Most notably hydroxyl radicals are produced from the decomposition of hydro-peroxides (ROOH) or, in atmospheric chemistry, by the reaction of excited atomic oxygen with water. It is also an important radical formed in radiation chemistry, since it leads to the formation of hydrogen peroxide and oxygen, which can enhance corrosion and SCC in coolant systems subjected to radioactive environments. Hydroxyl radicals are also produced during UV-light dissociation of H2O2 (suggested in 1879) and likely in Fenton chemistry, where trace amounts of reduced transition metals catalyze peroxide-mediated oxidations of organic compounds.
The fate of this radical in the troposphere is dependent on factors such as the amount of sunlight (light from the sun), pollution in the atmosphere and the nature of the alkyl radical that formed it.
Downes, A. and Blunt, T.P. (1879). The effect of sunlight upon hydrogen peroxide. Nature 20, 521.
Hydroxyl radical and hypochlorous acid scavenging activity of small Centaury (Centaurium erythraea) infusion. A comparative study with green tea (Camellia sinensis).
Jul 01, 2003; Summary Small centaury (Centaurium erythraea Rafin.) is a herbal species with a long use in traditional medicine due to its...
WIPO ASSIGNS PATENT TO MOCHIGASE FOR "HYDROXYL RADICAL GENERATOR, ANTIVIRAL MATERIAL USING HYDROXYL RADICAL GENERATOR, AND METHOD FOR GENERATING HYDROXYL RADICALS" (JAPANESE INVENTOR)
Feb 15, 2011; GENEVA, Feb. 15 -- Publication No. WO/2011/016527 was published on Feb. 10. Title of the invention: "HYDROXYL RADICAL GENERATOR,...