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1H-Benzotriazole

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1H-Benzotriazole Basic information
1H-Benzotriazole Chemical Properties
  • Melting point:97-99 °C(lit.)
  • Boiling point:204 °C (15 mmHg)
  • Density 1,36 g/cm3
  • vapor density 4.1 (vs air)
  • vapor pressure 0.04 mm Hg ( 20 °C)
  • refractive index 1.5589 (estimate)
  • Flash point:170 °C
  • storage temp. Refrigerator
  • solubility 19g/l
  • form Powder, Granules, Crystals, Needles or Flakes
  • pka1.6(at 20℃)
  • color White to yellow-beige
  • OdorSlight characteristic odor
  • PH6.0-7.0 (100g/l, H2O, 20℃)suspension
  • explosive limit2%
  • Water Solubility 25 g/l in water (20 ºC)
  • Merck 14,1108
  • BRN 112133
  • Stability:Stable, but may be light sensitive. Incompatible with strong oxidizing agents, heavy metals.
  • InChIKeyQRUDEWIWKLJBPS-UHFFFAOYSA-N
  • CAS DataBase Reference95-14-7(CAS DataBase Reference)
  • NIST Chemistry Reference1H-Benzotriazole(95-14-7)
  • EPA Substance Registry System1,2,3-Benzotriazole (95-14-7)
Safety Information
MSDS
1H-Benzotriazole Usage And Synthesis
  • Chemical Propertiesyellow to beige solid
  • UsesBenzotriazole (BT) is an anticorrosive agent well known for its use in aircraft deicing and antifreeze fluids but also used in dishwasher detergents. in vivo.
  • DefinitionChEBI: The simplest member of the class of benzotriazoles that consists of a benzene nucleus fused to a 1H-1,2,3-triazole ring.
  • General DescriptionWhite to light tan crystals or white powder. No odor.
  • Air & Water ReactionsDust may form an explosive mixture in air. Slightly soluble in water.
  • Reactivity ProfileThe triazoles are a group of highly explosive materials that are sensitive to heat, friction, and impact. Sensitivity varies with the type substitution to the triazole ring. Metal chelated and halogen substitution of the triazol ring make for a particularly heat sensitive material. Azido and nitro derivatives have been employed as high explosives. No matter the derivative these materials should be treated as explosives.
  • HazardHighly toxic by ingestion. May explode under vacuum distillation.
  • Health HazardACUTE/CHRONIC HAZARDS: When heated to decomposition 1H-Benzotriazole emits toxic fumes. 1H-Benzotriazole can react violently during vacuum distillation.
  • Fire HazardFlash point data are not available for 1H-Benzotriazole. 1H-Benzotriazole is probably combustible.
  • Safety ProfilePoison by intravenous route.Moderately toxic by ingestion and intraperitoneal routes.Questionable carcinogen with experimental tumorigenicdata. Mutation data reported. May detonate at 220°C or during vacuum distillation. When heated to decompositionit
  • CarcinogenicityChronic (2-year) feeding studies were conducted. Rats were given 0, 6700, or 12,000 ppm in feed for 78 weeks and held for an additional 26 weeks. Mice were given 0, 11,700, or 23,500 ppm in feed in 104 weeks. The authors concluded that under the conditions shown in this study, there were no convincing evidence that 1-H-benzotriazole was carcinogenic in rats or mice.
  • Purification Methods1,2,3-Benzotriazole crystallises from toluene, CHCl3, Me2NCHO or a saturated aqueous solution, and is dried at room temperature or in a vacuum oven at 65o. Losses are less if the material is distilled in a vacuum. CAUTION: may EXPLODE during distillation; necessary precautions must be taken. [Damschroder & Peterson Org Synth Coll Vol III 106 1955, Beilstein 26 III/IV 93.]
1H-Benzotriazole Preparation Products And Raw materials
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