108-88-3

  • English Name: Toluene
  • CAS Number: 108-88-3
  • Molecular Formula: C₇H₈
  • Molecular Weight: 92.14 g/mol

Physical Properties

  • Appearance: Colorless liquid with a characteristic aromatic odor.
  • Density: 0.867 g/cm³.
  • Boiling Point: 110.6°C.
  • Melting Point: -95°C.
  • Solubility: Insoluble in water but soluble in organic solvents like ethanol and ether.
  • Flash Point: 4°C.
  • Auto-ignition Temperature: 480°C.

Chemical Properties

  • Reactivity: More reactive than benzene due to the electron-donating effect of the methyl group.
  • Reactions: Easily undergoes nitration (e.g., to form TNT), sulfonation, and halogenation.
  • Stability: Stable under normal conditions but highly flammable.

Uses

  • Solvent: Widely used in paints, lacquers, adhesives, and as a solvent for resins and gums.
  • Chemical Synthesis: Used as a precursor for benzene, TNT, benzoic acid, and other organic compounds.
  • Fuel Additive: Added to gasoline to improve octane ratings.
  • Pharmaceuticals and Cosmetics: Used in the production of drugs and nail products.

Safety Information

  • Hazard Statements:
    • H225: Highly flammable liquid and vapor.
    • H304: May be fatal if swallowed and enters airways.
    • H315: Causes skin irritation.
    • H336: May cause drowsiness or dizziness.
  • Precautionary Statements:
    • P210: Keep away from heat, hot surfaces, sparks, open flames, and other ignition sources.
    • P260: Do not breathe vapor.
    • P280: Wear protective gloves, protective clothing, eye protection, and face protection.

Handling and Storage

  • Store in a well-ventilated place, keeping the container tightly closed and cool.
  • Use explosion-proof equipment and take measures to prevent static discharge.

Packing and shipping