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Technical Data Sheet

Chemical Synonym
  • TNPA
  • Electronic chemicals
  • Fungicides int
  • Intermediates

Product Description
Tri-n-Propylamine (TNPA) is a colorless liquid.

Typical Properties

PropertyTypical Value, Units
Molecular FormulaC9H21N
Molecular Weight143.27 g/mol
AppearanceColorless liquid
Autoignition Temperature180 °C
Boiling Point156.4 °C
Critical Pressure22 270 hPa
Critical Temperature304.33 °C
     @ 20°C0.756 g/cm3
Dissociation constant, pKa 
     @ 20°C10.65
Flash Point 
     Closed Cup33 °C
Freezing Point 
     (1013 hPa)-56.11 °C
Heat of Vaporizationa 
     (1013 hPa)300.46 kJ/kg
Octanol-water partition coefficient, log Pow 
     @ 25°C0.9
Surface Tension61.6 mN/m
Vapor Density 
     (air = 1)4.93
Vapor Pressure 
     @ 20°C4.3 hPa
     @ 40°C5.7 hPa
     @ 20°C0.677 mPa·s
Water solubility 
     @ 20°C0.444 g/L


  • Bulk
  • Steel drums (155 kg net)

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2/28/2018 11:35:39 AM