What Is Aniline

Aniline is one of the most essential amine substances. It is mainly used to manufacture dyes, drugs, and resins, as a rubber vulcanization accelerator, etc. It can also be used as a black dye by itself. Its derivative methyl orange can be used as an indicator for acid-base titration.

The industrial production of aniline involves the following two steps. First, benzene is nitrated at 50-60 °C in a mixture of concentrated sulfuric acid and concentrated nitric acid to give nitrobenzene; the latter is then catalytically reduced by hydrogenation (reaction temperature usually between 200-300 °C).

Specification:

• Appearance and properties: Colorless or slightly yellow oily liquid with a strong odor.
• CAS: 62-53-3
• UN: 1547
• Molecular formula: C₆H₇N
• Melting point (℃): -6.2
• Boiling point (℃): 184.4
• Flash point (℃): 70
• Density: 1.02 g/cm³
• Solubility: slightly soluble in water, ethanol, ether, and benzene.