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hydroquinone |
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hydroquinone /hy·dro·quin·one/ (hi?dro-kwi-non´) the reduced form of quinone, used topically as a skin depigmenting agent.
hydroquinone (hīdrōkwin´ōn), n 1. a reducing agent used as an inhibitor in resin monomers to prevent polymerization during storage. n 2. one of the two chemicals used as reducing agents in film-developing solutions. It is made from benzene (paradihydroxybenzene) and is sensitive to thermal changes. Above 70° F (21° C), the action of hydroquinone is rapid; below 60° F (15.5° C), hydroquinone becomes inactive. Its action is to control the contrast of the film. hydroquinone thought at one time to be the toxic component of Xanthium spp., a now discredited view. |
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The whitening effect is stronger than the one given by other whitening substances such as arbutin and hydroquinone. Keywords: Hydroquinone, sulfur accelerator, monomeric allylic, methacrylic, acrylic or diene type coagent The researchers chose ethylene glycol, indigo, and hydroquinone as adhesives that could bind to exposed oxygen atoms on both sides of an interface. |
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hydroquinone
