单词	nitrobenzene
释义	nitrobenzene /ˌnʌɪtrəʊˈbɛnziːn / noun [mass noun] Chemistry A yellow oily liquid made by nitrating benzene, used in chemical synthesis. Chemical formula: C6H5NO2. When nitrobenzene is nitrated with nitric and sulfuric acids, for example, 93 percent of the substituted groups end up at meta positions.... Aniline is manufactured by reduction of nitrobenzene, using hydrogen gas and a copper catalyst, or using iron, water, and hydrochloric acid for the reduction. Benzene and nitrobenzene are heavier than water and they are settling on the river bottom or sticking to the ice.
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