English name: Benzene
English alias: Benzol; Benzolene; Bicarburet of hydrogen; Carbon oil; Coal naphtha; Cyclohexatriene; Mineral naphtha; Motor benzol; Nitration benzene; Phene; Phenyl hydride; Pyrobenzol; AKOS BBS-00004227; BENZENE 5000; BENZENE 300
CAS number: 71-43-2; 174973-66-1; 54682-86-9
EINECS number: 200-753-7
Formula: C6H6
Molecular weight: 78.11
Chemical properties:Colorless transparent volatile liquid
Melting point: 5.51 ℃
Boiling point: 80.1 ℃
Liquid density (20 ℃) : 879.4 kg/m3
The density of the gas: 2.770 kg/m3
The relative density (38 ℃, air = 1) : 1.4
Gasification hot (25 ℃) : 443.62 kJ/kg
(80.1 ℃) : 394.02 kJ/kg
The critical temperature: 288.94 ℃
Critical pressure: 4898 kPa
Critical density: 302 kg/m3
Specific heat let (gas, 90 ℃ and 101.325 kPa) : Cp = 1361.96 kJ / (kg. K) Cv = 1238.07 kJ / (kg. K)
(liquid, 5 ℃) : 1628.665 kJ / (kg. K)
(liquid, 20 ℃) : 1699.841 kJ / (kg. K)
Heat capacity than: (gas, 90 ℃ and 101.325 kPa) : Cp/Cv = 1.10
Steam pressure (26.1 ℃) : 13.33 kPa
Viscosity (20 ℃) : 0.647 mPa
Surface tension (contact with air, 0 ℃) : 31.6 mN/m
Coefficient of thermal conductivity (12 ℃, liquid) : 0.13942 W / (m.K)
(0 ℃, liquid,) : 0.0087671 W / (m.K)
Refractive index (20 ℃) : nD = 14462
Flash point:-11 ℃
Flash point: 562.2 ℃
Explosion limit: 1.3% to 7.1%
The most pressure: 9 kg/cm2
The most pressure concentration: 3.9%
The most easily ignites concentration: 5%
Burning hot (liquid, 25 ℃) : 3269.7 KJ/mol
Toxic levels: 2
Inflammable levels: 3
Easy explosive levels: 0

Under the conditions of benzene in next for a sweet smelling colorless transparent volatile liquid. Can emit poisonous vapors. Benzene is a kind of not easy decomposition of compounds, and other chemical reaction, the basic structure remains, is only the hydrogen atoms are other groups of benzene to replace it. Benzene steam can with air to create an explosive mixture. Liquid benzene lighter than water, but the steam than air heavy. Meet high fever or open flame is apt to cause burns and explosion. Benzene steam can spread very far, meet the fire burning, and the flame along the airflow can lead to come back. Benzene easy to produce and accumulation of static electricity. Benzene and antioxidant contact the violent reaction. Benzene soluble in water, but soluble in alcohol, ether, acetone, chloroform, gasoline, carbon disulfide organic solvents.

Product use:
Basic chemical raw materials, used as a solvent and synthesis benzene derivatives, spices, dye, plastic, medicine, explosives, rubber, etc.