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Benzimidazole Basic information
Benzimidazole Chemical Properties
  • Melting point:169-171 °C(lit.)
  • Boiling point:360 °C
  • Density 1.1151 (rough estimate)
  • refractive index 1.5500 (estimate)
  • Flash point:360°C
  • storage temp. Store below +30°C.
  • solubility xylene: soluble1g in 2g (boiling)(lit.)
  • pka5.532(at 25℃)
  • form Crystalline Powder or Crystals
  • color Beige to brown
  • Water Solubility sparingly soluble
  • λmax271nm(MeOH)(lit.)
  • Merck 14,1081
  • BRN 109682
  • Stability:Stable. Combustible. Incompatible with strong oxidising agents.
  • CAS DataBase Reference51-17-2(CAS DataBase Reference)
  • NIST Chemistry Reference1H-Benzimidazole(51-17-2)
  • EPA Substance Registry SystemBenzimidazole (51-17-2)
Safety Information
Benzimidazole Usage And Synthesis
  • Chemical Propertieswhite crystals
  • UsesUsually used as template compound in the preparation of molecularly imprinted polymer via electropolymerization and electrodeposition of pyrrole on a pencil graphite electrode,and also used in the preparation of benzimidazolium surfactant, 1-hexadecyl-1H-benzimidazole.
  • General DescriptionWhite tabular crystals.
  • Air & Water ReactionsInsoluble in water.
  • Reactivity ProfileAn amine. Neutralizes acids to form salts plus water. These acid-base reactions are exothermic. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated in combination with strong reducing agents, such as hydrides. May be shock sensitive.
  • Health HazardACUTE/CHRONIC HAZARDS: When heated to decomposition Benzimidazole emits highly toxic fumes.
  • Fire HazardFlash point data for Benzimidazole are not available. Benzimidazole is probably combustible.
  • Safety ProfilePoison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits highly toxic fumes of NOx.
  • Purification MethodsIt crystallises from water or aqueous EtOH (charcoal) and is dried at 100o for 12hours. [Beilstein 23 H 131, 23/6 V 196.]
Benzimidazole Preparation Products And Raw materials
Benzimidazole(51-17-2)Related Product Information
  • Company Name:Wuhan Greatwall chemical Co,.LTD Gold
  • Tel:027-86647488
  • Company Name:Shenzhen Vtolo Chemicals Co., Ltd. Gold
  • Tel:13534282526
  • Company Name:J & K SCIENTIFIC LTD.
  • Tel:010-82848833- ;010-82848833-
  • Company Name:Meryer (Shanghai) Chemical Technology Co., Ltd.
  • Tel:21-61259100-
  • Company Name:INTATRADE GmbH
  • Tel:+49 3493/605464