1-Ethyl-3-methylimidazolium bromide (EMIM Br), 99%, Ionic Liquid
Product Introduction
1-Ethyl-3-methylimidazolium bromide (EMIM Br), 99%, Ionic Liquid is a research ionic liquid ionic liquid identified in the supplied product record as 1-Ethyl-3-methylimidazolium with Bromide (Br). The record lists CAS number 65039-08-9, molecular formula C6H11BrN2, purity 99%, package 100g.
The material is used in laboratory research in organic synthesis, catalysis, electrochemistry, electrodeposition, and molten-salt studies. Use as a reaction medium or electrolyte component. Confirm moisture sensitivity, compatibility, and operating conditions before use.
Key Features
- Defined ionic composition: The listed cation and anion provide a clear basis for electrolyte, solvent, and reaction-medium comparison.
- Declared purity: The supplied record lists 99% purity, supporting controlled material selection for research trials.
- Research package: Supplied in 100g for laboratory-scale evaluation and procurement planning.
- Compatibility and handling reference: The product record notes soluble in water, which helps screen aqueous handling and solvent compatibility. The supplied thermal references include melting point 76.75 °C.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 1-Ethyl-3-methylimidazolium bromide (EMIM Br), 99%, Ionic Liquid |
| CAS No. | 65039-08-9 |
| Cation | 1-Ethyl-3-methylimidazolium |
| Anion | Bromide (Br) |
| Molecular Formula | C6H11BrN2 |
| Molecular Weight | 191.07 g/mol |
| Purity | 99% |
| Grade | Research Ionic Liquid |
| Melting Point | 76.75 °C |
| Water Solubility | Soluble in water |
| Package | 100g |
Application Areas
- Electrolyte composition and ion-coordination studies
- Electrochemical reaction-media development
- Organic synthesis and catalysis research
- Solvent compatibility and separation-process screening
- Battery and energy-storage formulation research where the listed ionic composition is appropriate
Handling and Procurement
Keep the container tightly closed in a cool, dry, well ventilated area. Protect the material from moisture, water contamination, heat, and direct sunlight, and keep the container closed when not in use. Handle it only in accordance with the SDS and use appropriate protective equipment.
Related Products
| Research Need | Related Product | Best For |
|---|---|---|
| Compare the same cation with a different counterion | 1-Ethyl-3-methylimidazolium dicyanamide (EMIM DCA), 98%, Ionic Liquid | Counterion screening and formulation comparison. |
| Compare the same cation with a different counterion | 1-Ethyl-3-methylimidazolium dimethyl phosphate (EMIM DMP), 99%, Ionic Liquid | Counterion screening and formulation comparison. |
| Compare the same cation with a different counterion | 1-Ethyl-3-methylimidazolium methylsulfate (EMIM MeSO4), Research Grade, 98%, Ionic Liquid | Counterion screening and formulation comparison. |
| Compare the same cation with a different counterion | 1-Ethyl-3-methylimidazolium diethyl phosphate (EMIM DEP), Research Grade, 98%, Ionic Liquid | Counterion screening and formulation comparison. |
A halogenated ionic liquid with a well-defined solid-liquid phase transition at 76.75 °C and thermal decomposition initiating at 301 °C. This material requires storage and handling at temperatures below its decomposition threshold to maintain chemical integrity.
- Thermal Decomposition Limit: Maintain environmental temperatures below 301 °C to prevent thermal degradation of the halide salt.
- Solid-Liquid Phase Transition: Avoid prolonged exposure above 76.75 °C to prevent melting and potential change in physical form due to the sharp melting point.
How does the 76.75°C melting point of [C2MIm]Br affect its applicability in low-temperature electrochemical studies compared to room-temperature ionic liquids?
[C2MIm]Br melts sharply at 76.75°C, making it a solid at ambient temperature and unsuitable for low-temperature electrochemical studies without heating. However, its high thermal stability up to 301°C enables reliable molten salt electrochemistry in elevated-temperature systems where room-temperature ionic liquids would degrade or volatilize.
What are the key considerations for using [C2MIm]Br as a solvent or catalyst in transition-metal-mediated organic synthesis?
[C2MIm]Br is a halogenated ionic liquid whose bromide anion can coordinate with or serve as a halide source for transition metals, influencing catalytic cycles. Its full water solubility enables homogeneous aqueous-phase workups, but water content must be strictly controlled to avoid hydrolysis or ligand displacement in moisture-sensitive reactions.
What specific storage and handling precautions are required for [C2MIm]Br to maintain its purity and prevent decomposition?
Store [C2MIm]Br in a dry, sealed container away from heat sources, as decomposition initiates at 301°C. Being water-soluble, it is hygroscopic; for moisture-sensitive applications, handle under inert atmosphere and dry thoroughly before use. Avoid contact with strong oxidizing agents to prevent exothermic reactions.
1-Ethyl-3-methylimidazolium bromide (EMIM Br) presents a well-defined crystalline phase with a melting point of 76.75°C and thermal stability up to 301°C, suitable for molten salt electrochemistry and synthesis. Its solid state at room temperature and confirmed solubility only in water impose specific handling and solvent selection requirements for laboratory deployment.
Positive
- Sharp melting point for molten salt studies: Features a sharp, well-defined melting point boundary at 76.75 °C for specialized molten salt applications, enabling precise phase control in electrochemical or synthetic setups.
- High thermal stability up to 301 °C: Exhibits clean stability thresholds with structural breakdown occurring strictly at 301 °C, allowing operation over a wide temperature window without premature decomposition.
Trade-offs
- Solid at ambient laboratory temperatures: With a melting point of 76.75 °C, this material is a crystalline solid at standard room temperature and requires heating for use in liquid-phase applications such as electrochemistry or synthesis.
- Only aqueous solubility is explicitly confirmed: The technical specification lists solubility only in water; performance or miscibility in organic solvents is not characterized, necessitating empirical validation for non-aqueous workflows.
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