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单词 hydroquinone
释义

hydroquinonen.

/hʌɪdrəʊˈkwʌɪnəʊn/
Forms: Also hydrochinon(e, hydrokinone.
Etymology: < hydro- (in hydrogen n.) + quinone n.
Chemistry.
A diatomic phenol, C6H4(OH)2, prepared from quinone, C6H4O2, by reduction with sulphurous acid, crystallizing from water in colourless rhombic prisms. Now used as a developer in photography.
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the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > benzene derivatives > phenols > others
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1865–72 H. Watts Dict. Chem. III. 213 Hydroquinone, Hydrochinone, Hydrokinone... Colourless Hydroquinone (Pyroquinole), C6H6O2..is the chief product of the dry distillation of quinic, carbohydroquinonic, and oxysalicylic acids.
1865–72 H. Watts Dict. Chem. III. 213 Green Hydroquinone or Quinhydrone..C6H6O2. C6H4O2,..may be regarded..as a compound of quinone and colourless hydroquinone.
1889 Internat. Ann. Anthonys Photogr. Bull. 171 Hydroquinone, or more shortly quinol, will be the developer of the future.
1893 Brit. Jrnl. Photogr. 40 795 The development was effected with hydroquinone, as giving a blacker tone.
This entry has not yet been fully updated (first published 1899; most recently modified version published online December 2020).
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