单词 | hydroquinone |
释义 | hydroquinonen. 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. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > benzene derivatives > phenols > others phenetidine1851 nitrophenol1852 carvacrol1854 guaiacol1864 hydroquinone1865 iodophenol1868 pentachlorophenol1869 trichlorophenol1871 purpurogallin1872 xylenol1872 kosin1875 phloroglucinol1879 cerulignol1883 cannabinol1896 gossypol1899 thiophenol1899 phenol resin1911 oxine1927 nordihydroguaiaretic acid1944 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). < n.1865 |
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