o-Xylene
Solvent Properties

CAS 95-47-6


Physical Properties  
Molecular weight 106.17
Boiling point 144.41°C
Vapor pressure 6 Torr at 20°C
Freezing point -25.18°C
Refractive index 1.5054 at 20°C
Density 0.8802 g/mL (7.346 lb/gal) at 20°C
  0.8760 g/mL (7.311 lb/gal) at 25°C
Dielectric constant 2.57 at 20°C
Dipole moment 0.45 D at 25°C
Solvent group 7
Polarity index (P') 2.5
Eluotropic value on alumina 0.26
Viscosity 0.81 cP at 20°C
Surface tension 30.03 dyn/cm at 20°C
Solubility in water 0.018% at 25°C
   
Regulatory and Safety Data  
DOT Hazard Class 3, Flammable Liquid
Packing Group II
UN Identification Number UN1307
   
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) U239, D001
Flash point 90°F (32°C) by closed cup
Lower explosive limit 0.9%
Upper explosive limit 6.7%
Time Weighted Average 100 ppm ACGIH

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