2-Ethyl-4-methylimidazole Chemical Properties

Melting point:

47-54 °C (lit.)

Boiling point:

292-295 °C (lit.)

Density 

0.975 g/mL at 25 °C (lit.)

vapor pressure 

0.028Pa at 20℃

refractive index 

n20/D 1.5(lit.)

Flash point:

280 °F

storage temp. 

Inert atmosphere,Room Temperature

form 

powder to lump to clear liquid

pka

15.32±0.10(Predicted)

Specific Gravity

0.975

color 

White or Colorless to Yellow to Orange

Water Solubility 

210 g/L (20 ºC)

BRN 

1711

InChIKey

ULKLGIFJWFIQFF-UHFFFAOYSA-N

LogP

1.13 at 25℃

CAS DataBase Reference

931-36-2(CAS DataBase Reference)

NIST Chemistry Reference

1H-Imidazole, 2-ethyl-4-methyl-(931-36-2)

EPA Substance Registry System

2-Ethyl-4-methylimidazole (931-36-2)

Safety Information

Hazard Codes 

Xn,Xi

Risk Statements 

22-41

Safety Statements 

26-39

WGK Germany 

2

RTECS 

NI6147500

F 

10

Hazard Note 

Irritant/Harmful

TSCA 

Yes

HS Code 

29339900

MSDS

• Language:English Provider:2-Ethyl-4-methylimidazole
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
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2-Ethyl-4-methylimidazole Usage And Synthesis

Chemical Properties

clear yellow viscous liquid after melting

Uses

Curing epoxy-resin systems.

Uses

2-Ethyl-4-methylimidazole can be used as a:

• cross-linker for epoxy resins to synthesize network polymers with improved thermal resistance and physical properties.
• curing agent for polysiloxane episulfide resin (PSER).
• catalyst to promote curing of blends of hyperbranched aromatic epoxy polymer and bisphenol F diglycidyl ether.

Definition

ChEBI: 5K8XI641G3 is a member of imidazoles.

Application

2-Ethyl-4-methylimidazole is an important synthetic intermediate. It is used as an intermediate in pharmaceuticals, agrochemicals, dyes, textile auxiliaries, pigments and other organic chemicals. It can be used as a basic ingredient in other active ingredients, as a catalyst in chemical reactions, and in the curing of epoxy resins.

Preparation

2-Ethyl-4-methylimidazole was prepared as follows: diamine and propionitrile have a cyclization reaction sequentially at the temperature of 80-110 DEG C and 120-140 DEG C under the catalysis of a catalyst; a product after the cyclization reaction has a dehydrogenation reaction through raney nickel at the temperature of 170-200 DEG C, and 2-ethyl-4-methylimidazole is obtained.

Flammability and Explosibility

Non flammable

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