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Description
TCI E1520 3-Ethyl-1-methyl-1H-imidazol-3-ium Dimethyl Phosphate is an ionic liquid built from an imidazolium cation paired with a dimethyl phosphate anion. It belongs to the family of halogen-free ionic liquids, a character that is increasingly sought after because it does not generate the corrosive by-products that may arise from fluorinated anions. In the laboratory, this material is widely recognised as a dissolution medium for biomass, particularly cellulose, as well as a reaction solvent and a separation medium. Its role is significant in green chemistry research and in the rapidly growing field of renewable-resource material processing.
The property that makes this ionic liquid a frequent choice is the dimethyl phosphate anion, which is basic in character and a strong hydrogen-bond acceptor. This allows it to disrupt the hydrogen-bonding network of cellulose and dissolve the polymer without chemical derivatisation. In addition, the material has a very low vapour pressure, adequate thermal stability, and non-flammable behaviour, so it can be used safely at moderate process temperatures. The imidazolium cation gives a relatively manageable viscosity compared with many other ionic liquids, and its hygroscopic nature means the material is also studied in that context.
In Indonesian laboratories, this ionic liquid is typically encountered in university and institutional research groups working on biomass valorisation, where locally abundant lignocellulosic feedstocks are of strong interest. It is used on a bench scale for dissolution trials, solvent screening, and separation studies, generally in small batches within fume hoods. Because it is halogen-free and non-flammable, it fits well into green chemistry teaching and research programmes that emphasise safer solvent alternatives.
Laboratory Applications
- Cellulose dissolution studies — the basic dimethyl phosphate anion accepts hydrogen bonds strongly enough to break the cellulose hydrogen-bonding network and dissolve the polymer without any chemical derivatisation step.
- Biomass pretreatment research — as a dissolution medium for lignocellulosic feedstocks it supports fractionation and valorisation work central to renewable-resource processing and green chemistry programmes.
- Reaction solvent applications — its very low vapour pressure and adequate thermal stability allow reactions to be run at moderate temperatures without solvent loss or flammability concerns in the laboratory.
- Separation and extraction media — the material serves as a separation medium where a non-volatile, halogen-free liquid phase is preferred over conventional volatile organic solvents for partitioning work.
- Green chemistry solvent screening — being halogen-free, it avoids the corrosive by-products associated with fluorinated anions, making it a preferred candidate in safer-solvent evaluation studies.
Specifications
- Brand: TCI
- CAS number: 945611-27-8
- Category: Chemistry > Specialty Synthesis > Ionic Liquids [Specialty Synthesis]
- Pack sizes: available in standard TCI research-scale packaging; please confirm the size required when ordering
- Physical form: ionic liquid (liquid at typical handling conditions)
- Storage: keep tightly closed in a cool, dry place, protected from moisture uptake
Handling and Storage
Store the container tightly closed in a cool, dry area away from direct sunlight and sources of heat. Because the material is hygroscopic, exposure to ambient humidity should be minimised; reseal promptly after each use and, where practical, handle under dry conditions or a protective inert atmosphere to preserve water content. Use the original manufacturer container or a chemically compatible, well-sealed alternative, and label it clearly. Routine laboratory precautions apply: work in a fume hood, wear nitrile gloves, safety goggles, and a laboratory coat, avoid skin and eye contact, and use clean, dry transfer equipment to prevent contamination. Dispose of residues and contaminated materials through the laboratory's established chemical waste procedures.
