Aniline
Properties
Molecular formula: C6H7N
Molecular weight: 93.13
CAS: 62-53-3
EINECS: 200-539-3
Density: 1.0213
Melting point: -6.2 ºc
Boiling point: 181-185 ºc
Refractive index: 1.5845-1.5865
Flash Point: 76 ºc
Water solubility: 36 g/l (20 ºc)
Aniline is a colorless liquid with a strong irritating odor at room temperature.
It is soluble in water and organic solvents and is strongly alkaline.
Aniline is a strong reducing agent and reacts violently with oxidizing agents such as oxygen and chlorine.
It is easily oxidized and will gradually turn black when exposed to air.
Applications
It is an important raw material for the production of synthetic fibers, rubber antioxidants, etc.
Preparation method
Aniline is usually prepared by reduction of benzene nitrate or epoxidation of aromatic amines.
Benzene nitric acid reduction is the most common method of preparing aniline, in which aniline is obtained by reacting benzene nitric acid with a reducing agent (e.g., sulfite).
Safety Information
Aniline is a strong irritant and may cause damage to the skin, eyes, and respiratory system; contact should be avoided.
Prolonged exposure to aniline may result in damage to the central nervous system and hematopoietic system.
Aniline is a carcinogen and may be associated with the development of leukemia and other malignancies.
When handling aniline, appropriate safety measures such as wearing protective gloves, goggles and clothing, ensuring safe handling and good ventilation must be taken.