Home page

4-Nitroaniline

Category：

Nitroaniline

Keyword：

Message

Detail

p-Nitroaniline, yellow needle crystal, highly toxic, easy to sublime. Slightly soluble in cold water, soluble in boiling water, ethanol, ether, benzene and acid solution. It is a synthetic chemical widely used in the dye industry. It is an intermediate of various printing and dyeing and pharmaceutical chemicals, and can also be used as an analytical reagent. Wear protective measures when handling to avoid release to the environment.Chinese name p-nitroaniline
English name p-Nitroaniline
Another name is 4-nitroaniline; 1-amino-4-nitrobenzene
Chemical formula C6H6N2O2
Molecular weight 138.12
CAS accession number 100-01-6
EINECS accession number 202-810-1
Melting point 148-149℃
Boiling point 332℃
Water-soluble slightly soluble in cold water, soluble in boiling water
Density 1.424g/ml
Appearance yellow needle crystal
Flash point 199℃
application
Used as intermediates of dyes, pesticides and antioxidants, and also used as analytical reagents
security description
Wear appropriate protective clothing and gloves to avoid release to the environment
Hazard Symbols
R23/24/25 R33 R52/53
Hazard description
Toxic by inhalation, skin contact and if swallowed, cumulative, harmful to aquatic life
Dangerous Goods Shipping Number UN 1661

Product Usage

p-Nitroaniline is an extremely important intermediate in the dye industry. It can be directly used in the synthesis of varieties: direct sunfast black G, direct green B, BE, 2B-2N, black green NB, direct gray D, acid black 10B, ATT , Disperse red P-4G, cationic dark yellow 2RL, fur black D, p-phenylenediamine, o-chloro-p-nitroaniline, 2.6-dichloro-4-nitroaniline, 5-nitro-2-chlorophenol, etc., It can also be used to synthesize pesticide chlornitramine and medicine californica; at the same time, it is also the raw material of antioxidant, light stabilizer, developer and so on. The disperse dyes synthesized abroad with p-nitroaniline as the diazo component are: C, I disperse orange 1, 3, 7, 21, etc., red 1, 2, 7, 17, etc., blue 259; black 2, 3, 28 , 29 et al.
This product is the ice-dye red GG color base, which can be used as black salt K for dyeing and printing of cotton and linen fabrics. But it is mainly used as an azo dye intermediate, such as for the production of direct dark green B, acid medium brown G, acid black 10B, acid wool ATT, fur black D and direct gray D, etc. It can also be used as an intermediate for pesticides and veterinary drugs. It can also be used in the production of p-phenylenediamine; antioxidants and preservatives.

Message