Question

How the 1,4 dianilinebenzene is obtained from chlorobemzene?

Answer 1

 P-Phenylenediamine

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P-Phenylenediamine

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PubChem CID:7814Chemical Names:P-Phenylenediamine; Benzene-1,4-diamine; 106-50-3; 1,4-BENZENEDIAMINE; 1,4-Diaminobenzene; 1,4-Phenylenediamine   More...Molecular Formula:C6H8N2; C6H4(NH2)2Molecular Weight:108.144 g/molInChI Key:CBCKQZAAMUWICA-UHFFFAOYSA-NSubstance Registry:FDA UNIISafety Summary:Laboratory Chemical Safety Summary (LCSS)

P-phenylenediamine is a Standardized Chemical Allergen. The physiologic effect of p-phenylenediamineis by means of Increased Histamine Release, and Cell-mediated Immunity. The chemical classification of p-phenylenediamine is Allergens.

FDA Pharmacology Summary from FDA Pharm Classes

p-Phenylenediamine is primarily used as a dye intermediate and as a dye. Acute (short-term) exposure to high levels of p-phenylenediamine may cause severe dermatitis, eye irritation and tearing, asthma, gastritis, renal failure, vertigo, tremors, convulsions, and coma in humans. Eczematoid contact dermatitis may result from chronic (long-term) exposure in humans. In rats and mice chronically exposed to p-phenylenediamine in their diet, depressed body weights, but no other clinical signs of toxicity, were observed in several studies. No information is available on the reproductive, developmental, or carcinogenic effects of p-phenylenediamine in humans. EPA has not classified p-phenylenediamine with respect to carcinogenicity.

Hazards Summary from EPA Air Toxics

P-PHENYLENEDIAMINE is a white to purple crystalline solid (melting point 234 F) that turns purple to black in air. Flash point 309 F. Toxic by skin absorption, inhalation or ingestion. Used for production of aramid fiber, antioxidants, as a laboratory reagent, in photographic developing, and as a dye for hair and furs.