Pentane
Solvent Properties

CAS 109-66-0


Physical Properties  
Molecular weight 72.15
Boiling point 36.07C
Vapor pressure 420 Torr at 20C
Freezing point -129.7C
Refractive index 1.3575 at 20C
Density 0.6262 g/mL (5.226 lb/gal) at 20C
  0.6214 g/mL (5.186 lb/gal) at 25C
Dielectric constant 1.84 at 20C
Dipole moment 0.00 D at 25C
Solvent group 0
Polarity index (P') 0.0
Eluotropic value on alumina 0.00
Viscosity 0.23 cP at 20C
Surface tension 15.48 dyn/cm at 25C
Solubility in water 0.04% at 20C
Solubility of water in pentane 0.009% at 20C
   
Regulatory and Safety Data  
DOT Hazard Class 3, Flammable Liquid
Packing Group I
UN Identification Number UN1265
   
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
Flash point <-40F (<-40C) by closed cup
Lower explosive limit 1.5%
Upper explosive limit 7.8%
Time Weighted Average 600 PPM ACGIH