Nitrobenzene, an organic compound, also known as dense spot oil, bitter almond oil, colorless or yellowish oily liquid with bitter almond flavor. Insoluble in water, denser than water; Soluble in ethanol, ether, benzene and oil. In case of open fire, high heat will burn, explosion. Reacts violently with nitric acid. Nitrobenzene is obtained by nitration of benzene with nitric acid and sulfuric acid. As an intermediate for organic synthesis and as a raw material for aniline production. Used in the production of dyes, spices, explosives and other organic synthesis industry.
Nitrobenzene is an important organic intermediate. Nitrobenzene is sulphonated by sulfur trioxide to obtain m-nitrobenzene sulfonic acid. Can be used as a dye intermediate mild oxidizer and anti-dye salt S. Nitrobenzene is sulfonated by chlorosulfonic acid to obtain m-nitrobenzene sulfonyl chloride, which is used as intermediate in dyes and medicine. Nitrobenzene is chlorinated to m-nitrochlorobenzene, which is widely used in the production of dyes and pesticides, and m-chloroaniline can be obtained after reduction. Used as dye orange based GC, but also medicine, pesticides, fluorescent whitening agents, organic pigments and other intermediates. The re-nitration of nitrobenzene can produce m-dinitrobenzene, the reduction can produce m-phenylenediamine, used as dye intermediate, epoxy resin curing agent, petroleum additive, cement coagulant, m-dinitrobenzene can be partially reduced by sodium sulfide to obtain m-nitroaniline. For the dye orange R, is the intermediate of azo dyes and organic pigments.
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