SZSE：002741
Chemical Reagents
Benzene?COA Report
  • CAS No.： 71-43-2?
  • Molecular weight：78.11
  • Molecular formula：C6H6
  • UN Code：1114
  • EC No.：200-753-7
  • HS-No：29022000
Information
Specification category：
Product No. Product name specifications
1.15601.023 Benzene AR500mL
1.15601.083 Benzene AR20KG
Characteristic： Appearance and properties:Colorless liquid with a strong aromatic flavor.
Relative density: 0.88
Relative vapor density: 2.77
Melting point(℃): 5.5
Boiling point(℃): 80.1
Concentration: Pure
Vapor Pressure: 13.33 (26.1 ℃)
Solubility: insoluble in water, soluble in alcohol, ether, acetone, etc. Most organic solvents.
Heat of combustion (kJ / mol): 3264.4
Critical temperature (℃): 289.5
Critical pressure (MPa): 4.92
Technical indicators：
Item AR CP
Assay ≥99.5% ≥99.0%
Chroma, Hazen ≤10 ≤20
Melting point(℃) ≥5.2℃ ≥4.5℃
Evaporation residue ≤0.001% ≤0.002%
Acidity(as H+)，mmol/g ≤0.0001 ≤0.0001
Alkalinity(as OH-), mmol/g ≤0.0001 ≤0.0001
Readily carbonizable substances Pass Pass
Sulfur compounds(as SO4) ≤0.0015% ≤0.003%
Thiophene (C4H4S) ≤0.0002% ≤0.0002%
Water (H2O) ≤0.03% ≤0.05%
Hazard characteristics：

IATA-DGR UN 1114 BENZENE,3,II

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