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physicochemical properties of aniline

add time:2020-06-18

List of physicochemical properties and main USES of aniline
CAS: 62-53-3
Molecular formula: C6H5NH2
Molecular weight: 93.13
Aniline, aminobenzene, aniline oil
English name: Aniline, Aminobenzene
Appearance: colorless to light yellow transparent liquid, color is allowed to become darker when stored
Freezing point: ≥-6.4℃
Content: 99.5% or higher
Nitrobenzene: ≤0.010%
Moisture: 0.3% or less
Melting point (℃) : -6.2
Boiling point (℃) : 184.4
Relative density (water =1) : 1.02
Relative vapor density (air =1) : 3.22
Refractive index (20℃) : 1.5863
Saturated vapor pressure (kPa) : 2.00(77℃)
Heat of combustion (kJ/mol) : 3,389.8
Critical temperature (℃) : 425.6
Critical pressure (MPa) : 5.30
Log value of octanol/water partition coefficient: 0.94
Flash point (℃) : 70
Explosion upper limit %(V/V) : 11.0
Lower limit of explosion %(V/V) : 1.3
Solubility: slightly soluble in water, soluble in ethanol, ether, benzene.

Main USES:
1. Used in the synthesis of dyes, medicine, rubber, resin, perfume, etc.
2, aniline is one of the very important intermediates in the dye industry, in the dye industry can be used to produce acid ink blue G, acid medium BS, acid light yellow, direct orange S, direct pink, indigo, disperse yellow brown, cationic pink FG and reactive brilliant red X-SB; In terms of organic pigments, it is used in the production of gold red, gold red G, big red powder, phenol cyanine red, etc. It is used in the printing and dyeing industry for the dye aniline black; It is used to produce many insecticides and fungicides such as DDV in pesticide industry. Aniline is an important raw material of rubber auxiliaries, used in the manufacture of anti-aging agents, promoters, etc. It is also an intermediate in the production of spices, plastics, varnishes, films, etc.
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