Hydroquinone
The Hydroquinone , also called benzene-1,4-diol , is a related aromatic organic compound with the phenol, of following formula C6H4 (OH) 2 and which is presented under a solid powder under the normal conditions of pressure and temperature.
Its structure comprises two hydroxyls groups related to a benzene core in position para .
Properties
Reducing agent.
Uses
Hydroquinone has multiple uses mainly because of its action like reducing agent in solution in water. It is one of the major components in the photographic development where, in the presence of Metol, it reduces salts of money and metal money.In human medicine, hydroquinone was used in application on the skin to reduce the color without causing of it dermatoses it is the case with Metol. However this use is interdict in unquestionable areas (for example in France) by fear of carcinogenic effects.
In synthesis of polymers, it is used as inhibiter in order to prevent a premature polymerization of the monomer, due for example to dioxygene of the air (it is a biradical) which can start polymerization. in the house, chapter 23
Toxicity
In pespective ecological, like all the products of development, hydroquinone is dangerous for the ecosystems and in particular for water because it is not very biodegradable and partly poison for fish. This product is harmful because it contains benzene, a derivative of phenol in particular. Once used, like the worn oils or piles, this product must be deposited in a discharge specialized not to pollute the environment. The revalator can be the subject of a heat treatment in a suitable chemical installation.
See too
External bond
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