Propylamine
Propylamine, also known as n-propylamine, is an amine with the chemical formula CH3(CH2)2NH2.[1] It is a colorless volatile liquid.[2]
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Names | |
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Preferred IUPAC name
Propan-1-amine | |
Other names
Propylamine | |
Identifiers | |
3D model (JSmol) |
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1098243 | |
ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.003.149 |
EC Number |
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1529 | |
PubChem CID |
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RTECS number |
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UNII | |
UN number | 1277 |
CompTox Dashboard (EPA) |
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Properties | |
C3H9N | |
Molar mass | 59.112 g·mol−1 |
Appearance | Colorless liquid |
Odor | fishy, ammoniacal |
Density | 0.719 g mL−1 |
Melting point | −83.00 °C; −117.40 °F; 190.15 K |
Boiling point | 47 to 51 °C; 116 to 124 °F; 320 to 324 K |
Miscible | |
log P | 0.547 |
Vapor pressure | 33.01 kPa (at 20 °C) |
Henry's law constant (kH) |
660 μmol Pa−1 kg−1 |
Acidity (pKa) | 10.71 |
Refractive index (nD) |
1.388 |
Thermochemistry | |
Heat capacity (C) |
162.51 J K−1 mol−1 |
Std molar entropy (S |
227.44 J K−1 mol−1 |
Std enthalpy of formation (ΔfH⦵298) |
−101.9–−101.1 kJ mol−1 |
Std enthalpy of combustion (ΔcH⦵298) |
−2.368–−2.362 MJ mol−1 |
Hazards | |
GHS pictograms | ![]() ![]() ![]() |
GHS Signal word | Danger |
GHS hazard statements |
H225, H302, H311, H314, H331 |
P210, P261, P280, P305+351+338, P310 | |
Flash point | −30 °C (−22 °F; 243 K) |
Explosive limits | 2–10.4% |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
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Related compounds | |
Related alkanamines |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Infobox references | |
Propylamine is a weak base. Its Kb (base dissociation constant) is 4.7 × 10−4.
Preparation
Propyl amine hydrochloride can be prepared by reacting 1-propanol with ammonium chloride at high temperature and pressure using a Lewis acid catalyst such as ferric chloride.
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References
- https://pubchem.ncbi.nlm.nih.gov/compound/Propylamine
- Karsten Eller, Erhard Henkes, Roland Rossbacher, Hartmut Höke "Amines, Aliphatic" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2005. doi:10.1002/14356007.a02_001
External links
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