1,4-Dioxane
Solvent Properties

CAS 123-91-1


Physical Properties  
   
Molecular weight 88.11
Boiling point 101.32C
Vapor pressure 29 Torr at 20C
Freezing point 11.80C
Refractive index 1.4224 at 20C
Density 1.0336 g/mL (8.625 lb/gal) at 20C
  1.0280 g/mL (8.578 lb/gal) at 25C
Dielectric constant 2.25 at 20C
Dipole moment 0.45 D at 25C
Solvent group 6
Polarity index (P') 4.8
Eluotropic value on alumina 0.56
Eluotropic value on octadecylsilane 11.7
   
Viscosity 1.37 cP at 20C
Surface tension 34.45 dyn/cm at 15C
Solubility in water Miscible in all proportions
   
Regulatory and Safety Data  
DOT Hazard Class 3, Flammable Liquid
Packing Group II
UN Identification Number UN1165
   
Storage Store in an area designed for flammable storage, or an approved metal cabinet, away from direct sunlight, heat and sources of ignition.
   
EPA applicable waste code(s) D001, U108
Suspected carcinogen (IARC)  
Flash point 54F (12C) by closed cup
Lower explosive limit 2.0%
Upper explosive limit 22.0%
Time Weighted Average 25 ppm ACGIH
Peroxide hazard Check for presence od peroxides before concentrating.