155371-19-0

Basic information

• Product Name: 1-Ethyl-3-methylimidazolium hexafluorophosphate
• Synonyms: 1-ETHYL-3-METHYL-1 H-IMIDAZOLIUM HEXAFLUOROPHOSPHATE;1-ETHYL-3-METHYLIMIDAZOLIUM HEXAFLUOROPHOSPHATE;1-ethyl-3-methyl-1H-imidazolium hexa-fluorophosph;1-ETHYL-3-METHYL-IMIDAZOLIUM-HEXAFLUORO-;EMIMPF6;1-Ethyl-3-methylimidazolium hexafluorophosphate, 98+%;1-Ethyl-3-methylimidazolium Hexafluorophosphate [for Molten Salt];1-Ethyl-3-methylimidazolium hexafluorophosphate ,99%
• CAS NO: 155371-19-0
• Molecular Formula: C₆H₁₁N₂*F₆P
• Molecular Weight: 256.13
• EINECS: -0
• Product Categories: Imidazolium Compounds;Imidazolium Salts (Ionic Liquids);Ionic Liquids;Synthetic Organic Chemistry;Ionic liquid;Chemical Synthesis;Imidazolium;Specialty Synthesis
• Mol File: 155371-19-0.mol
• Article Data: 11

Chemical Properties

• Melting Point: 58-62 °C(lit.)
• Appearance: /
• Density: 1.48 g/cm3
• Storage Temp.: Inert atmosphere,Room Temperature
• Water Solubility: very faint turbidity in hot Water
• CAS DataBase Reference: 1-Ethyl-3-methylimidazolium hexafluorophosphate(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Ethyl-3-methylimidazolium hexafluorophosphate(155371-19-0)
• EPA Substance Registry System: 1-Ethyl-3-methylimidazolium hexafluorophosphate(155371-19-0)

Safety Data

• Statements: 36/37/38
• Safety Statements: 22-24/25
• WGK Germany: 3
• F: 9-21
• Hazardous Substances Data: 155371-19-0(Hazardous Substances Data)

Usage

Description

1-Ethyl-3-methylimidazolium hexafluorophosphate, also known as [EMIM][PF6], is a task-specific ionic liquid (TSIL) characterized by its low melting point. It is a colorless crystalline compound that consists of an organic cation (1-ethyl-3-methylimidazolium) and an inorganic anion (hexafluorophosphate). This ionic liquid exhibits unique properties such as non-volatility, high thermal stability, and high ionic conductivity, making it a versatile compound for various applications.

Uses

Used in Energy Storage Applications:
1-Ethyl-3-methylimidazolium hexafluorophosphate is used as an electrolyte in lithium/sodium ion batteries for its high ionic conductivity and thermal stability. This application takes advantage of the compound's ability to facilitate the movement of ions, enabling efficient energy storage and discharge in batteries.
Used in Renewable Energy Applications:
In dye-sensitized solar cells, 1-Ethyl-3-methylimidazolium hexafluorophosphate is used as an electrolyte due to its high ionic conductivity and thermal stability. This application capitalizes on the compound's ability to enhance the efficiency of solar cells by improving the transport of ions within the cell.
Used in Chemical Synthesis:
1-Ethyl-3-methylimidazolium hexafluorophosphate is used as a medium for the synthesis of conducting polymers and intercalation electrode materials. Its unique properties, such as low melting point and high thermal stability, make it an ideal candidate for facilitating chemical reactions and improving the properties of the resulting materials.
Used in Pharmaceutical Industry:
1-Ethyl-3-methylimidazolium hexafluorophosphate is used as a solvent or catalyst in various pharmaceutical processes. Its unique properties, such as non-volatility and high thermal stability, make it suitable for use in the synthesis of complex organic molecules and the development of new drugs.
Used in Materials Science:
In the field of materials science, 1-Ethyl-3-methylimidazolium hexafluorophosphate is used as a component in the development of novel materials with specific properties. Its unique characteristics, such as high ionic conductivity and thermal stability, contribute to the creation of advanced materials for various applications, including electronics, sensors, and energy storage devices.

InChI:InChI=1/C6H11N2.F6P/c1-3-8-5-4-7(2)6-8;1-7(2,3,4,5)6/h4-6H,3H2,1-2H3;/q+1;-1

Upstream product

• 35935-34-3 1-ethyl-3-methylimidazolium iodide 
• 65039-08-9 3-ethyl-1-methyl-1H-imidazol-3-ium bromide 
• 616-47-7 1-methyl-1H-imidazole 
• 64-67-5 diethyl sulfate 
• 74-96-4 ethyl bromide 

Downstream Products

• 377739-43-0 1-ethyl-3-methyl-imidazolium tris(pentafluoroethyl)trifluorophosphate 
• 60-29-7 diethyl ether 
• 353-36-6 1-fluoroethane 
• 7647-19-0 phosphorus pentafluoride 

Relevant articles and documents

Effect of imidazolium ionic liquids on the hydrolytic activity of lipase

The effect of 1-alkyl-3-methylimidazolium ionic liquids (ILs) on the hydrolysis activityof Candida rugosa lipase (CRL) toward triacylglycerol was investigated. The critical micelle concentrations (CMC) of ILs with Br -, Cl-, and [BF4]- anions and the solubility of ILs with [PF6]- anions were determined in phosphate buffer. Results suggested that the content of the ILs, not kosmotropicity, highly influenced the effects of anions and cations of ILs on CRL activity. As the length of alkyl chain of the cation [CnMIM] + increased, lower IL content was required to achieve high enzyme activity. Once the concentrations of the ILs with Br-, Cl -, and [BF4]- anions exceeded the CMC value, enzyme activity was suppressed. The positive promotion effect of anions on enzyme activity was in the order of Br- Cl- [BF 4]- [PF6]-. The effect of ionic liquid on enzyme activity was highly dependent on the pH and temperature of the system, with the optimum pH being 7.000. Under optimal conditions of pH 7.000, 30 °C, and 47.6 mmol/L of [C8MIM]Br, the highest relative activity of CRL (1734%) was achieved, with a specific activity of 54.4 U/mg protein.

Ionic liquid co-lyophilized enzyme for biocatalysis in organic solvent: Remarkably enhanced activity and enantioselectivity

The room temperature solid-phase ionic liquid (RTSPIL) co-lyophilized enzyme exhibited markedly enhanced activity in organic solvent. The enzyme co-lyophilized with a dodecyl-imidazolium salt was 660-fold more active compared to its RTSPIL-free counterpart. The activity enhancement by RTSPILs was mainly attributable to the reduced particle sizes and improved dispersion of enzymes suspended in organic solvent. Also, the RTSPIL co-lyophilized enzyme displayed significantly enhanced enantioselectivity. Its enantioselectivity was 2.5-fold higher than that of its RTSPIL-free counterpart.

A Superstrong and Reversible Ionic Crystal-Based Adhesive Inspired by Ice Adhesion

In this study, we developed a superstrong and reversible adhesive, which can possess a high bonding strength in the “adhesive” state and detach with the application of heating. An ionic crystal (IC) gel, in which an IC was immobilized within a soft-polymer matrix, were synthesized via in situ photo-crosslinking of a precursor solution composed of N, N-dimethyl acrylamide (DMAA) and a melted IC. The obtained IC gel is homogenous and transparent at melt point. When cooled to the phase transition temperature of the IC, the gel turns into the adhesive with the adhesion strength of 5.82 MPa (on glasses), due to the excellent wetting of melted gel and a thin layer of crystalline IC with high cohesive strength formed on the substrates. The synergistic effects between IC, polymer networks and substrates were investigated by solid state 1H NMR and molecular dynamics simulation. Such an adhesive layer is reversable and can be detached by heating and subsequent re-adhesion via cooling. This study proposed the new design of removable adhesives, which can be used in dynamic and complex environments.