CAS 98-95-3

Chinese name nitrobenzene

English name nitrobenzene

English aliases more

 Nitrobenzene physicochemical properties

Density 1.205

boiling point 210-211 °C(lit.)

melting point 5-6 °C(lit.)

Molecular Formula C6H5NO2

Molecular Weight: 123.10900

Flash point 190 °F

Exact mass 123.03200

PSA 45.82000

LogP 2.11800

Appearance traits yellow liquid

Vapor density 4.2 (vs air)

Vapour pressure 0.15 mm Hg ( 20 °C)

refractive index n20/D 1.551(lit.)

Storage conditions

Storage precautions Store in a cool, ventilated warehouse. Keep away from tinder, heat sources. Keep the container tightly sealed. It should be stored separately from oxidants, reducing agents, alkalis, and edible chemicals, and mixed storage should be avoided. Equipped with fire fighting equipment of corresponding varieties and quantities. Storage areas should be equipped with emergency treatment equipment for leakage and suitable containment materials.

stability

1. Chemical properties: relatively stable to acids and alkalis. It can volatilize with water vapor and has weak oxidation. Iron, zinc and other metals react with hydrochloric acid, or use nickel, copper, silver, etc. as catalysts, pressure for reduction, to generate aniline. React with the mixed acid of sulfuric acid and nitric acid to generate dinitrobenzene or trinitrobenzene. Chlorination is carried out in the presence of iodine or magnesium chloride to form m-clonitrobenzene. The chlorination reaction is carried out in the presence of ferric chloride, and 2,5-dichloronitrobenzene is formed at room temperature. At 100 °C, 2,3,5,6-tetrachloronitrobenzene is generated. HCB is generated above 100 °C. The interaction with oleum sulfuric acid mainly produces m-nitrobenzenesulfonic acid. It reacts with potassium hydroxide to form o-nitrophenol and a small amount of p-nitrophenol. Nitrobenzene can react with Grignard's reagent.

2. Stability Stable

3. Forbidden substances strong oxidants, ammonia, amines, etc

4. Aggregation hazards do not polymerize

5. Decomposition products nitrogen oxides