| When phenol is oxidized in acid solution by chlorine, tetrachlorquinone is obtained, a compound also obtainable from hydroquinone. |
| Catechol and pyrogallol may be substituted for hydroquinone, but are not as suitable. |
| Bleaching agents include hydroquinone, which is available in 2 to 4 percent creams and gels. |
| This may be due to the reaction products that are formed when hydroquinone is present. |
| When hydrolyzed by mineral acids or emulsin, it yields glucose and hydroquinone. |
| Polymerisation is stabilised by phenolic derivatives, most often 10 to 15 ppm of hydroquinone monomethyl ether. |
