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2-Ethyl-4-Methylimidazole (EMI-24) is a versatile chemical compound. Its versatility and unique properties make it an essential compound in various industrial applications, particularly in epoxy curing, CO2 capture, and as a chemical intermediate.
Basicity: pKa≈8.1 (stronger than 1-methylimidazole)
Characteristic Reactions:
Undergoes ring-opening reactions with epoxy groups (curing mechanism)
Capable of forming metal complexes (e.g., coordination with Cu²⁺)
Excellent thermal resistance (decomposition temperature >300°C)
Application
1.Epoxy Resin Curing Agent:
EMI-24 is widely used as a curing agent for epoxy resins, providing improved thermal resistance and enhanced physical properties for network polymers.
2.Cross-Linking Agent:
2-Ethyl-4-Methylimidazole is used as a cross-linker in the synthesis of high-performance network polymers, particularly in two-component epoxy systems.
3.Carbon Dioxide Absorber:
EMI-24 is a promising low-cost CO2 absorber, capable of capturing and releasing CO2 efficiently at relatively low temperatures (<100°C), making it suitable for industrial applications.
4.Pharmaceutical and Chemical Intermediate:
EMI-24 is used as a synthetic intermediate in the production of pharmaceuticals, agrochemicals, dyes, pigments, and other organic chemicals.
5.Catalyst:
It acts as a selective catalyst in epoxy and urethane reactions, accelerating the curing process in adhesives and coatings.
Storage Conditions
Store sealed in a cool, dry, and well-ventilated place. Avoid light, heat, and contact with heat sources and open flames. Keep away from strong acids and oxidants, and do not expose to humid air.
CAS No. | 931-36-2 |
Synonym | EMI-24 2E4MZ 4-Methyl-2-Ethylimidazole 2-Ethyl-5-methyl-1H-imidazole 2-Ethyl-4-methyl-1H-imidazole 1H-Imidazole, 2-ethyl-4-methyl- |
EINECS No. | 213-234-5 |
Molecular Formula | C₆H₁₀N₂ |
Molecular Weight(g/mol) | 110.16 |
Density(g/cm3) | 0.98-1.02 |
Refractive Index | 1. 4995 |
Appearance | Light yellow viscous liquid |
Purity (%) | 96min |
Boiling Point(℃) | 292-295 |
Solubility | Soluble in alcohol, acetone, DMF; Slightly soluble in water |