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                                         Information @ a Glance

General

  • Aniline, phenylamine or aminobenzene is an organic compound with the formula C6H7N.
  • Aniline is the simplest and one of the most important aromatic amines, being used as a precursor to more complex chemicals.
  • Aniline main application is in the manufacture of polyurethane. Like most volatile amines, it possesses the somewhat unpleasant odour of rotten fish and also has a burning aromatic taste.
  • Aniline is a highly-acrid poison. It ignites readily, burning with a smoky flame.

Process

  • Aniline is colourless, it slowly oxidizes and resinifies in air, giving a red-brown tint to aged samples.
  • Aniline reacts with carboxylic acids or more readily with acyl chlorides such as acetyl chloride to give amides. The amides formed from aniline are sometimes called anilides.
  • Aniline combines directly with alkyl iodides to form secondary and tertiary amines.
  • Aniline and its ring-substituted derivatives react with nitrous acid to form diazonium salts.
  • Aniline reacts with nitrobenzene to produce phenazine in the Wohl-Aue reaction.

Application

  • The great commercial value of aniline was due to the readiness with which it yields, directly or indirectly, dyestuffs.
  • At the present time, the largest market for aniline is preparation of methylene diphenyl diisocyanate (MDI), some 85% of aniline serving this market.
  • When polymerized, aniline can be used as a type of nanowire for use as a semiconducting electrode bridge, most recently used for nano-scale devices such as biosensors.
  • Aniline is used to stain neural RNA blue in the Nissl stain.

Market

  • Currently, aniline manufacturers pay more attention to the market dynamic, especially the MDI market, and duly adjust their aniline production. In other words, Chinese aniline production grows rational.
  • Along with the strong growth of aniline production in China, aniline production became surplus in the market.
  • Gross profit for aniline improved because the increase in its average selling price more than offset the increase in the price of its main raw material, benzene.
  • SP chemicals has doubled its Chlor-alkali and aniline production capacities in its Production Phase Four Expansion Plans (“PP4”).

Report

  • The structure and properties of copolymers based on aniline and pyrrole prepared by electrochemical methods were reported to depend significantly on the solvent and supporting electrolyte.
  • The polymerization of aniline by Cu(II) montmorillonite was studied using attenuated total reflection Fouriertransform infrared (ATR-FTIR) spectroscopy.
  • Global aniline goes into production of methylene diphenyl disocyanate(MDI), a key intermediate for polyurethanes and automotive plastics.
     

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