Benzene (C₆H₆)

  • CAS Number: 71-43-2
  • EINECS Number: 200-753-7
  • Chemical Formula: C₆H₆
  • Molecular Weight: 78.11 g/mol
  • Appearance: Colorless liquid with a sweet odor
  • Density: 0.879 g/cm³ (20°C)
  • Melting Point: 5.5°C
  • Boiling Point: 80.1°C
  • Flash Point: -11°C (Closed Cup)
  • Solubility: Slightly soluble in water; Miscible in organic solvents such as alcohol, ether, and chloroform
  • Water Solubility: 0.18 g/100 mL (20°C)
  • pH Value: Not applicable (neutral)
  • Packaging Specifications: 170 kg*80 drums, 13.6 tons/20′ FCL (container)
  • Preparation: Benzene is produced by catalytic reforming of petroleum naphtha or by coal carbonization.

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  • Applications:
    • Synthetic Materials: Used in the production of synthetic fibers, plastics, and resins.
    • Solvent: Used as a solvent in the chemical and pharmaceutical industries for various applications, including paint and coatings.
    • Petrochemical Industry: Benzene is a key raw material in the production of styrene, cumene, cyclohexane, and other chemicals.
    • Lubricants: Used in the formulation of lubricants, rubber processing, and other industrial fluids.
    • Explosives: Benzene is involved in the production of explosives and other high-energy compounds.
  • Hazard Identification:
    • Flammability: Highly flammable liquid and vapor. Benzene poses a significant fire hazard.
    • Health Hazards: Prolonged exposure to benzene can cause central nervous system depression, dizziness, and headaches. It is a known carcinogen that may cause leukemia and other blood disorders.
    • Eye and Skin Irritation: May cause irritation to the eyes and skin. Repeated exposure can lead to dryness and cracking of the skin.
    • Inhalation Risks: Inhalation of high concentrations of benzene vapors can lead to dizziness, drowsiness, and loss of coordination. Long-term exposure may cause irreversible health effects.
    • Environmental Hazards: Benzene is toxic to aquatic life and may cause long-term damage to aquatic ecosystems if released into the environment.
  • Precautionary Statements:
    • Fire Prevention: Keep away from heat, sparks, open flames, and other ignition sources. Use explosion-proof electrical equipment and ensure proper ventilation when handling benzene.
    • Personal Protection: Wear protective gloves, eye protection, and face protection when handling benzene. Ensure adequate ventilation in work areas to avoid inhalation of vapors.
    • In Case of Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing and seek medical attention if irritation persists.
    • In Case of Inhalation: Move the person to fresh air immediately. Keep comfortable for breathing and seek medical attention if symptoms persist.
    • In Case of Skin Contact: Wash the affected skin with soap and water. Seek medical attention if irritation or rash develops.
    • If Swallowed: Call a poison center or doctor immediately. Do not induce vomiting unless directed by medical personnel.
    • Handling Spills: Eliminate all sources of ignition. Use inert materials to absorb the liquid and dispose of it in accordance with local environmental regulations.

COA Test Report

Product Name Benzene
Specification Industrial Grade
Molecular Formula C6H6
Molecular Weight 78.11
Batch Number 2023052901
Quantity 2500 kg
Submitted by Production Department
Sample Type Organic
Report Date May 31, 2023
Test Standard GB/T 3405-2011

Test Results

Item Standard Requirement Test Result
Purity (%) ≥99.80 99.90
Appearance Transparent liquid, free from insoluble matter and mechanical impurities Transparent liquid, free from insoluble matter and mechanical impurities
Color (Platinum-Cobalt Scale) ≤20 <20
Toluene (%) ≤0.10 0.004
Non-aromatics (%) ≤0.15 <0.15
Thiophene (mg/kg) Report Qualified
Acid Wash Color Qualified Qualified
Total Sulfur Content (mg/kg) ≤2 <2
Crystallization Point (°C) ≥5.35 5.50
Density (20°C) (kg/m³) Report Qualified
Neutrality Test Neutral Qualified

Conclusion

Conforms to GB/T 3405-2011 Industrial Grade requirements.

Approved by Zhang Xiaobin
Reviewed by Guan Xiujun