BenzeneC₆H₆

C6H6 • 78.110 g·mol⁻¹

organiccovalentliquidCAS 71-43-2PubChem 241 →
C₆H₆C6H678.1100 g·mol⁻¹
Molar mass78.110 g·mol⁻¹calc 78.114 • Atomic weights: CIAAW 2021 (conventional atomic weights)
FormulaC₆H₆C6H6
Classorganic • covalentliquid
Composition — C₆H₆
ElementCountMass (g/mol)Mass %
C672.06692.26%
H66.0487.74%

Physical properties

State at STP
liquid
Density
0.879 g·cm⁻³ (liquid at 20 °C, 1 atm)
Melting point
278.7 K (1 atm)
Boiling point
353.2 K (1 atm)

Structure & bonding

Planar hexagon with 6pi delocalized electrons (aromatic). Resonance stabilization.

Occurrence & preparation

Petroleum reforming product; isolated by extraction. Carcinogen.

Uses

  • Solvent (specialist)
  • Precursor to styrene

Safety

Known carcinogen; flammable; vapors toxic.

Consult current SDS. — consult current SDS before handling.

Constituent elements

Related reactions

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