n-Butyl Alcohol
Solvent Properties

CAS 71-36-3

Physical Properties  
Molecular weight 74.12
Boiling point 117.5C
Vapor pressure 4.4 Torr at 20C
Freezing point -88.62C
Refractive index 1.3993 at 20C
Density 0.8097 g/mL (6.757 lb/gal) at 20C
  0.8060 g/mL (6.726 lb/gal) at 25C
Dielectric constant 17.51 at 25C
Dipole moment 1.75 D at 25C
Solvent group 2
Polarity index (P') 3.9
Eluotropic value on alumina 0.7
Viscosity 2.98 cP at 20C
Surface tension 24.57 dyn/cm at 20C
Solubility in water 7.81% at 20C
Solubility of water in n-butyl alcohol 20.07% at 20C
Regulatory and Safety Data  
DOT Proper Shipping Name Butanol
DOT Hazard Class 3, Flammable Liquid
Packing Group II
UN Identification Number UN1120
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) U031, F003, D001
Flash point 98F (37C) by closed cup
Lower explosive limit 1.4%
Upper explosive limit 11.2%
Time Weighted Average 50 ppm ACGIH

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