مرجع مواد شیمیایی ایران
اطلاعات عمومی بنزن
  • نام شیمیایی

    • بنزن

    • Benzene

  • مترادف ها
    • Benzol; Phene; Phenyl hydride

  • CAS
    71-43-2
  • فرمول مولکولی
    C6H6
  • جرم مولکولی
    78/11
  • EINECS
    200-753-7
  • ICB Number
    ICB 4918
  • شکل و حالت فیزیکی
    مایع بی رنگ
  • نقطه ذوب
    5/53 °C
  • نقطه جوش
    80 °C
  • دانسیته
    0/874 g/mL at 25 °C(lit.)
  • فشار بخار
    166 mm Hg ( 37/7 °C)
  • دانسیته بخار
    2/77 (vs air)
  • ضریب شکست (n20/D­­)
    1/501
  • نقطه اشتعال
    −11/63 °C (11/07 °F; 261/52 K)
  • دمای نگهداری
    0-6 °C
  • حلالیت در آب
    0/18 g/100 mL
  • ویسکوزیته
    0/6076 cp (25 °C)
  • شماره CAS
    71-43-2
  • شماره ثبت تجاری (RBN)
    969212
  • شماره مرک (Merck)
    14,1066
  • NIST Chemistry Reference
  • EPA Substance Registry System
  • مراجع MSDS
  • ارائه دهنده
    زبان
  • انگلیسی
  • انگلیسی
  • 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.

  • Preparation products

    4-BROMO-7-CHLOROQUINOLINE-->5-FORMYL-2-THIOPHENECARBOXYLIC ACID-->METHYL 6-(ACETYLAMINO)NICOTINATE-->Octyl cyanoacetate-->4,5-DIMETHYL-2-NITROANILINE-->PHENYLBORON DICHLORIDE-->Sulfachloropyridazine sodium-->Acetrizoic acid-->1-AZIRIDINEETHANOL-->2-Chlorophenyl isocyanate-->2-(N-HEPTANOYL)THIOPHENE-->3-THIOPHEN-2-YL-BENZALDEHYDE-->ETHYL ISONICOTINOYLACETATE-->2-PYRAZINECARBONYL CHLORIDE-->3-FLUOROPHENYL ISOCYANATE-->2-Chloro-6-methylpyrimidin-4-ylamine-->ISOCYANIC ACID-->1-Bromo-1-phenyl-2-propanone-->2-Methoxyphenyl isocyanate-->2-FLUOROPHENYL ISOCYANATE-->4-Methoxyphenyl isocyanate-->4-Fluorophenyl isocyanate-->5-TERT-BUTYL-1H-INDOLE-2-CARBOXYLIC ACID ETHYL ESTER-->tert-Amylbenzene -->m-Nitrobenzoyl chloride-->BUTYL 3-MERCAPTOPROPIONATE-->N-NONANOPHENONE-->4-BENZOYLBUTYRIC ACID-->3-BROMOPROPIONITRILE-->7-METHOXY-3,4,5,6-TETRAHYDRO-2H-AZEPINE-->4-Amino-3-chloropyridine-->Pesticide synergist agent-->PHENYLMERCURY NITRATE-->2-ACETAMIDO-5-PICOLINE-->1,3-DIMETHYL-2-(2-THIENYL)IMIDAZOLIDINE-->Isomerase, glucose-->Isobutyrophenone-->Benzoylcyclohexane-->2,5-Dimethyl-3-hexyne-2,5-diol

  • Raw materials

    Nitrogen-->Diethylene glycol-->PETROLEUM ETHER-->COAL TAR-->Platinum-->Motor benzol-->Phenanthrene-->light benzol-->heavy benzol-->DODECYLBENZENE-->COKEOVENGAS-->COUMARONE RESIN-->Hydrogenated gasoline