Description
Aniline,C6H5NH2, is slightly soluble in water,miscible in alcohol and ether,and turns yellow to brown in air. Aniline may be made(1) by the reduction, with iron or tin in HCI, of nitrobenzene, and(2) by the amination of chlorobenzene by heating with ammonia to a high temperature corresponding to a pressure of over 200 atmospheres in the presence of a catalyst(a mixture of cuprous chlorideandoxide).Aniline is the end point of reduction of most mononitrogen substituted benzene nuclei,as nitro ben.
Basic Attributes
Molecular Weight：93.12650
Exact Mass：93.13
EC Number：200-539-3
HScode：2921411000
Characteristics
PSA：26.02000
XLogP3：1.85
Appearance：Colourless liquid
Density：1.0217 g/cm3 @ Temp: 20 °C
Melting Point：-6.0 °C
Boiling Point：184.1 °C
Flash Point：76 °C
Refractive Index：n20/D 1.586(lit.)
Water Solubility：H2O: 36 g/L (20 ºC)
Storage Conditions：Storage Room low temperature ventilation drying ,Separate storage with oxidant and food additive
Vapor Pressure：Vapour pressure, Pa at 20°C: 40
Vapor Density：3.22 (185 °C, vs air)
Toxicity：LD50 orally in rats: 0.44 g/kg (Jacobson)
Flammability characteristics：Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Explosive limit：vol% in air: 1.21.0
Odor：Hedonic tone; pungent
Taste：Burning taste
PH：pH = 8.1 (0.2 molar aq soln)
PKA：4.6(at 25 °C; aniline conjugate acid)
Used
Aniline is a toxic organic compound with the formula C6H5NH2. Consisting of a phenyl group attached to an amino group, aniline is the prototypical aromatic amine. Its main use is in the manufacture of precursors to polyurethane and other industrial chemicals. Like most volatile amines, it possesses the odor of rotten fish. It ignites readily, burning with a smoky flame characteristic of aromatic compounds.
