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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 ...
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 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 .
3-Nitrotoluene or meta-nitrotoluene is an organic compound with the formula CH 3 C 6 H 4 NO 2. It is one of three isomers of nitrotoluene . A yellow liquid, it is used in the manufacture of meta -toluidine , which is an intermediate in the production of various dyes.
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.
2-Chloronitrobenzene; 3-Chloronitrobenzene; 4-Chloronitrobenzene ... Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; ...
2-Nitrotoluene or ortho-nitrotoluene is an organic compound with the formula CH 3 C 6 H 4 NO 2. It is pale yellow liquid that crystallizes in two forms, called α (−9.27 °C) and β (−3.17 °C). It is mainly a precursor to o-toluidine, which is an intermediate in the production of various dyes. [4]
It undergoes the reactions typical for nitrobenzene derivatives, e.g. hydrogenation gives p-toluidine. Oxidation of the methyl substituent of 4-nitrotoluene has been extensively investigated. Depending on the conditions, oxidation yields 4-nitrobenzaldehyde diacetate, [6] 4-nitrobenzenoic acid, [7] and 4,4'-dinitrobibenzyl. [8]