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Chemical Properties

CAS Registry Number: 142-84-7

Selected information from two of the National Library of Medicine's databases: ChemIDPlus2 and HSDB3.

Names 1

  • 1-Propanamine, N-Propyl-
  • Dipropylamine

Structure

Chemical Structure for Chemical Abstracts Service Registry Number 142-84-7 from NLM

Synonyms (Sources: NTP,HSDB,RTECS,MESH)2

  • 1-Propanamine, N-propyl-
  • 4-11-00-00122 (Beilstein Handbook Reference)
  • AI3-24037
  • BRN 0505974
  • Di-n-propylamine
  • HSDB 2644
  • N-Propyl-1-propanamine
  • RCRA waste number U110
  • n-Dipropylamine

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Other Registry Numbers2

  • None Found

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Chemical Properties3

Property Description
Boiling Point
  • 109.3 deg C
Color/Form
  • Colorless liquid
  • Water-white liquid
Corrosivity
  • None Found
Critical Temperature & Pressure
  • Critical temperture: 555.8 K; critical pressure: 3.63 MPA
Density/Specific Gravity
  • 0.738 at 20 deg C/4 deg C
Dissociation Constants
  • pKb = 3; pKa = 11
Heat Of Combustion
  • -18,750 BTU/LB= -10,420 CAL/G= -436.0X10+5 J/KG
Heat Of Vaporization
  • 44.04 kJ/mol at 25 deg C
Melting Point
  • -63 deg C
Molecular Weight
  • 101.19
Odor
  • Ammonia odor
Other Chemical/Physical Properties
  • Amines tends to be fat soluble /Amines/
  • Bulk density = 6.1 lb/gal
  • Conversion factor: 1 ppm= 4.14 mg/cu m
  • Forms a hydrate with water
  • Henry's Law constant = 5.1X10-5 atm-cu m/mole at 25 deg C
  • Hydroxyl radical reaction rate constant = 8.7X10-11 cu cm/molecule-sec at 25 deg C (est)
  • Ideal gas heat capacity= 0.390 Btu/lb ft @ 75 deg C
  • Liquid heat capacity= 0.600 Btu/lb-F @ 70 deg F
  • Nitrosable secondary amine.
  • Saturated liquid density= 46.010 lb/cu ft @ 70 deg C
  • Saturated vapor density= 0.00771 lb/cu ft @ 70 deg C
  • Saturated vapor pressure= 0.433 lb/sq in @ 70 deg C
Relative Evaporation Rate
  • None Found
Solubilities
  • In water, 3.51X10+4 mg/L at 25 deg C
  • Miscible in ether, very soluble in acetone, soluble in ethanol
Spectral Properties
  • 1H NMR: 17051 (Sadtler Research Laboratories Spectral Collection)
  • IR: 2243 (Sadtler Research Laboratories Prism Collection)
  • Index of refraction: 1.40455 at 20 deg C/D
  • MASS: 34521 (NIST/EPA/MSDC Mass Spectral database, 1990 version)
  • Raman: 20 (Dollish wt al., Characteristic Raman Frequencies of Organic Compounds, John Wiley & Sons, New York)
  • SADTLER REFERENCE NUMBER: 2243 (IR, PRISM)
Surface Tension
  • 6.58 DYNES/CM= 0.00658 NEWTONS/M @ 20 DEG C
Taste
  • None Found
Vapor Density
  • 3.49 (air= 1)
Vapor Pressure
  • 20.1 mm Hg at 25 deg C
Viscosity
  • 0.517 mPa.s at 25 deg C
log P (octanol-water)
  • log Kow = 1.67
pH
  • None Found

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Uses3

  • ...Required principally as a starting material for the synthesis of herbicides, e.g. trifluralin, oryzalin, EPTC, and vernolate **PEER REVIEWED**
  • Intermediate **PEER REVIEWED**

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Notes (Sources: NTP,HSDB,RTECS,MESH)2

  • None Found.

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Superlist Classes2

  • Reportable Quantity (RQ) = 5000 lb

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Links to Additional Information2

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Footnotes

1 Source: the NTP's CEBS database.

2 Source: the National Library of Medicine's ChemIDPlus, 02/28/2017.

3 Source: the National Library of Medicine's Hazardous Substance Database, 02/28/2017.

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