Toluene
Solvent Properties

CAS 108-88-3


Physical Properties  
Molecular weight 92.14
Boiling point 110.62°C
Vapor pressure 28.5 Torr at 20°C
Freezing point -94.99°C
Refractive index 1.4969 at 20°C
Density 0.8669 g/mL (7.234 lb/gal) at 20°C
  0.8623 g/mL (7.196 lb/gal) at 25°C
Dielectric constant 2.38 at 25°C
Dipole moment 0.31 D at 20°C
Solvent group 7
Polarity index (P') 2.4
Eluotropic value on alumina 0.29
Viscosity 0.59 cP at 20°C
Surface tension 28.53 dyn/cm at 20°C
Solubility in water 0.052% at 25°C
Solubility of water in toluene 0.033% at 25°C
   
Regulatory and Safety Data  
DOT Hazard Class 3, Flammable Liquid
Packing Group II
UN Identification Number UN1294
   
Storage Store in an area designed for flammable storage, or in an approved metal cabinet, away from direct sunlight, heat and sources of ignition.
   
EPA applicable waste code(s) D001, U220, F005
Flash point 40°F (4°C) by closed cup
Lower explosive limit 1.1%
Upper explosive limit 7.1%
Time Weighted Average 50 ppm ACGIH

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