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CAS No.71-43-2
Chemical Name:Benzene
Molecular Formula:C6H6
Formula Weight:78.11
MOL File:71-43-2.mol
Benzene Property
Melting point : 5.5 °C(lit.)
Boiling point : 80 °C(lit.)
density : 0.874 g/mL at 25 °C(lit.)
vapor density : 2.77 (vs air)
vapor pressure : 166 mm Hg ( 37.7 °C)
refractive index : n20/D 1.501(lit.)
Fp : 12 °F
storage temp. : 0-6°C
Water Solubility : 0.18 g/100 mL
Merck : 14,1066
BRN : 969212
Stability:: Stable. Substances to be avoided include strong oxidizing agents, sulfuric acid, nitric acid, halogens. Highly flammable.
CAS DataBase Reference: 71-43-2(CAS DataBase Reference)
NIST Chemistry Reference: Benzene(71-43-2)
EPA Substance Registry System: Benzene(71-43-2)
Hazard Codes : F,T
Risk Statements : 45-46-11-36/38-48/23/24/25-65-39/23/24/25-23/24/25
Safety Statements : 53-45-36/37-16-7
RIDADR : UN 1114 3/PG 2
WGK Germany : 3
RTECS : CY1400000
F : 3-10
HazardClass : 3
PackingGroup : II
Hazardous Substances Data: 71-43-2(Hazardous Substances Data)

Benzene Chemical Properties,Usage,Production

Chemical Properties
colourless liquid
General Description
A clear colorless liquid with a petroleum-like odor. Flash point less than 0°F. Less dense than water and slightly soluble in water. Hence floats on water. Vapors are heavier than air.
Air & Water Reactions
Highly flammable. Slightly soluble in water.
Reactivity Profile
Benzene reacts vigorously with allyl chloride or other alkyl halides even at minus 70°C in the presence of ethyl aluminum dichloride or ethyl aluminum sesquichloride. Explosions have been reported [NFPA 491M 1991]. Ignites in contact with powdered chromic anhydride [Mellor 11:235 1946-47]. Incompatible with oxidizing agents such as nitric acid. Mixtures with bromine trifluoride, bromine pentafluoride, iodine pentafluoride, iodine heptafluoride and other interhalogens can ignite upon heating [Bretherick 5th ed. 1995]. Benzene and cyanogen halides yield HCl as a byproduct (Hagedorn, F. H. Gelbke, and Federal Republic of Germany. 2002. Nitriles. In Ullman Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA.). The reaction of Benzene and trichloroacetonitrile evolves toxic chloroform and HCl gasses. (Hagedorn, F., H.-P. Gelbke, and Federal Republic of Germany. 2002. Nitriles. In Ullman Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA.).
Health Hazard
Dizziness, excitation, pallor, followed by flushing, weakness, headache, breathlessness, chest constriction, nausea, and vomiting. Coma and possible death.
Fire Hazard
Behavior in Fire: Vapor is heavier than air and may travel considerable distance to a source of ignition and flash back.
Benzene Preparation Products And Raw materials
Raw materials
Diethylene glycol Platinum COKEOVENGAS Nitrogen Motor benzol heavy benzol Hydrogenated gasoline light benzol DODECYLBENZENE COAL TAR PETROLEUM ETHER COUMARONE RESIN Phenanthrene
Preparation Products
1-AZIRIDINEETHANOL 5-TERT-BUTYL-1H-INDOLE-2-CARBOXYLIC ACID ETHYL ESTER N-NONANOPHENONE tert-Amylbenzene 4-BENZOYLBUTYRIC ACID Isobutyrophenone ETHYL ISONICOTINOYLACETATE 2-Methoxyphenyl isocyanate Acetrizoic acid 3-THIOPHEN-2-YL-BENZALDEHYDE 2-(N-HEPTANOYL)THIOPHENE 2-Chlorophenyl isocyanate BUTYL 3-MERCAPTOPROPIONATE PHENYLMERCURY NITRATE 4-BROMO-7-CHLOROQUINOLINE 2,5-Dimethyl-3-hexyne-2,5-diol 4-Methoxyphenyl isocyanate 2-FLUOROPHENYL ISOCYANATE Benzoylcyclohexane ISOCYANIC ACID Isomerase, glucose Sulfachloropyridazine sodium m-Nitrobenzoyl chloride Pesticide synergist agent 1,3-DIMETHYL-2-(2-THIENYL)IMIDAZOLIDINE 3-BROMOPROPIONITRILE Octyl cyanoacetate PHENYLBORON DICHLORIDE 4-Fluorophenyl isocyanate 4,5-DIMETHYL-2-NITROANILINE 1-Bromo-1-phenyl-2-propanone 2-ACETAMIDO-5-PICOLINE 4-Amino-3-chloropyridine 7-METHOXY-3,4,5,6-TETRAHYDRO-2H-AZEPINE 5-FORMYL-2-THIOPHENECARBOXYLIC ACID 2-PYRAZINECARBONYL CHLORIDE 3-FLUOROPHENYL ISOCYANATE 2-Chloro-6-methylpyrimidin-4-ylamine METHYL 6-(ACETYLAMINO)NICOTINATE
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