N,N-Diethylpropargylamine Chemical Properties

Melting point:

157-161°C

Boiling point:

118-120 °C(lit.)

Density 

0.80 g/mL at 20 °C(lit.)

vapor pressure 

14.6hPa at 20℃

refractive index 

n20/D 1.434

Flash point:

156°C

storage temp. 

2-8°C

pka

8.54±0.25(Predicted)

form 

clear liquid

color 

Colorless to Light orange to Yellow

Specific Gravity

0.811

Water Solubility 

Soluble in acid. Insoluble in water.

Sensitive 

Air & Light Sensitive

BRN 

1098468

LogP

1.5 at 23℃

CAS DataBase Reference

4079-68-9(CAS DataBase Reference)

NIST Chemistry Reference

2-Propyn-1-amine, n,n-diethyl-(4079-68-9)

EPA Substance Registry System

2-Propyn-1-amine, N,N-diethyl- (4079-68-9)

Safety Information

Hazard Codes 

F,Xn,C,F+

Risk Statements 

11-21/22-34

Safety Statements 

26-36/37/39-45

RIDADR 

UN 2733 3/PG 2

WGK Germany 

3

RTECS 

UK5775000

F 

8-10-13-23

TSCA 

Yes

HazardClass 

3

PackingGroup 

I

HS Code 

29211990

MSDS

• Language:English Provider:1-Diethylamino-2-propyne
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

N,N-Diethylpropargylamine Usage And Synthesis

Description

N,N-Diethylpropargylamine is a kind of nickel plating brightener with excellent performance and excellent levelling effect. It is widely used in nickel plating and alloy plating industry, because it is insoluble in water, it is generally used after reacting with acid to form quaternary ammonium salt before use, meanwhile, it is also a kind of pharmaceutical intermediates and pesticide intermediates, and has certain application fields in fine chemical industry.

Uses

3-Diethylamino-1-propyne is used as functional leveling agent, brightener.

Synthesis Reference(s)

Journal of the American Chemical Society, 81, p. 693, 1959 DOI: 10.1021/ja01512a047

Flammability and Explosibility

Flammable

Synthesis

According to the processing condition difference reported at present, two kinds of synthesis techniques, respectively atmospheric low-temperature alkalization method and high-pressure catalysis method. The atmospheric low-temperature alkalization method generally is divided into two steps: 1) propionic alcohol reacts with phosphorus trichloride and generates propine chlorine under cold conditions; 2) upper step gained propine chlorine is reacted with diethylamine under the low-temperature alkali condition and generate N, N-diethyl propargylamine. As shown in the reaction formula:

N,N-Diethylpropargylamine(4079-68-9)Related Product Information

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• TRIPROPARGYLAMINE
• OXOTREMORINE