Cyclopentane
Solvent Properties

CAS 287-92-3


Physical Properties  
Molecular weight 70.14
Boiling point 49.26C
Vapor pressure 400 Torr at 20C
Freezing point -93.87C
Refractive index 1.4064 at 20C
Density 0.7454 g/mL (6.219 lb/gal) at 20C
  0.7405 g/mL (6.178 lb/gal) at 25C
Dielectric constant 1.97 at 20C
Dipole moment 0.00 D at 25C
Solvent group 0
Polarity index (P') 0.1
Eluotropic value on alumina 0.05
Viscosity 0.44 cP at 20C
Surface tension 22.42 dyn/cm at 20C
Solubility in water 0.01% at 20C
Solubility of water in cyclopentane 0.01% at 20C
   
Regulatory and Safety Data  
DOT Hazard Class 3, Flammable Liquid
Packing Group II
UN Identification Number UN1146
   
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 <20F (<-7C) by closed cup
Lower explosive limit 1.5%
Upper explosive limit Not listed
Time Weighted Average 600 ppm ACGIH