4270 Nitrobenzene Approximately 95% of nitrobenzene is consumed in the production of aniline, which is a precursor to rubber chemicals, pesticides, dyes, explosives, and pharmaceuticals. Nitrobenzene is an organic compound with the chemical formula C6H5NO2. It is a water-insoluble pale yellow oil with an almond-like odor. It freezes to give greenish-yellow crystals. It is produced on a large scale from benzene as a precursor to aniline. In the laboratory, it is occasionally used as a solvent, especially for electrophilic reagents. Nitrobenzene is prepared by nitration of benzene with a mixture of concentrated sulfuric acid, water, and nitric acid. This mixture is sometimes called 'mixed acid.' The production of nitrobenzene is one of the most dangerous processes conducted in the chemical industry because of the exothermicity of the reaction ( delta H = 117 kJ/mol). 98-95-3 7416 C6H5NO2 123.11 5.7°C 210.8°C (411.4°F) 2.09 mg/mL at 25°C 2B, possibly carcinogenic to humans. (L135) 2014-08-29T05:53:42Z 2026-04-17T19:49:52Z nitrobenzene C06813 27798 NBZ true O=N(=O)C1=CC=CC=C1 C6H5NO2 InChI=1S/C6H5NO2/c8-7(9)6-4-2-1-3-5-6/h1-5H LQNUZADURLCDLV-UHFFFAOYSA-N 123.1094 123.032028409 Exogenous Liquid 1.85 HMDB41950 CHEMBL15750 7138 CHEM003176 DTXSID3020964 NS00001683 43.14 32.3785 11.263492274669511 1 2 0 -8.634151969747997 0 1 1.89 -2.03 1.14e+00 g/l