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Using an acid ratio of 30/56/14, the product mix is typically 34-36% 2-nitrochlorobenzene and 63-65% 4-nitrochlorobenzene, with only about 1% 3-nitrochlorobenzene. Since the above synthetic route does not efficiently produce the 3-isomer, the route most commonly used by chemists is the chlorination of nitrobenzene .
C 7 H 7 Cl (C 6 H 4 ClCH 3) Molar mass: 126.586 g/mol Appearance colorless liquid CAS number [95-49-8] [108-41-8] [106-43-4] Properties Density and phase: 1.073 g/ml, liquid 1.072 g/ml, liquid 1.069 g/ml, liquid Solubility in water: practically insoluble Other solubilities Soluble in non-polar solvents such as aromatic hydrocarbons: Melting ...
2-Chloro-m-cresol; 3-Chloro-4-fluorophenylpiperazine ... 1,2-Dichloro-4-nitrobenzene; 1,3-Dichloro-2-nitrobenzene ... Text is available under the Creative Commons ...
2-Chloronitrobenzene; 3-Chloronitrobenzene; 4-Chloronitrobenzene ... Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; ...
This is the list of extremely hazardous substances defined in Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act (42 U.S.C. § 11002).The list can be found as an appendix to 40 CFR 355. [1]
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c 6 h 5 cl + hno 3 → o 2 nc 6 h 4 cl + h 2 o This reaction affords a mixture of isomers. Using an acid ratio of 30% nitric acid, 56% sulfuric acid and 14% water, the product mix is typically 34-36% 2-nitrochlorobenzene and 63-65% 4-nitrochlorobenzene , with only about 1% 3-nitrochlorobenzene .
The U.S. National Institute for Occupational Safety and Health considers 4-nitrochlorobenzene as a potential occupational carcinogen. [5] The Occupational Safety and Health Administration set a permissible exposure limit of 1 mg/m 3 The American Conference of Governmental Industrial Hygienists recommends an airborne exposure limit of 0.64 mg/m 3 over a time-weighted average of eight hours.