Methyl n-Propyl Ketone
Solvent Properties

CAS 107-87-9

Physical Properties  
Molecular weight 86.13
Boiling point 102.4C
Vapor pressure 27.8 Torr at 20C
Freezing point -77.8C
Refractive index 1.3901 at 20C
Density 0.8082 g/mL (6.744 lb/gal) at 20C
  0.8033 g/mL (6.703 lb/gal) at 25C
Dielectric constant 15.45 at 20C
Dipole moment 2.70 D at 20C
Solvent group 6
Polarity index (P') 4.5
Viscosity 0.506 cP at 20C
Surface tension 25.09 dyn/cm at 20C
Solubility in water 5.95% at 20C
Solubility of water in methyl n-propyl ketone 3.30% at 20C
Regulatory and Safety Data  
DOT Hazard Class 3, Flammable Liquid
Packing Group II
UN Identification Number UN1249
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 45F (7C) by closed cup
Lower explosive limit 1.5%
Upper explosive limit 8.2%
Time Weighted Average 200 ppm ACGIH

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