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Description
TCI E0108 Ethylene Glycol Bis(propionitrile) Ether is a difunctional organic solvent that combines a glycol ether backbone with two nitrile groups positioned at either end of the molecule. This hybrid structure places it at the intersection of the fluorinated ether and glycol ether solvent family and the class of nitrile-bearing solvents. In the laboratory it is used not merely as a passive reaction medium but as a functional component within electrochemical systems. Its role is most prominent in research on lithium-ion battery electrolytes, supercapacitors, and other electrochemical cells that require a polar solvent capable of dissolving inorganic salts effectively.
The characteristics that lead researchers to select this compound are the combination of two highly polar cyano groups with a flexible ethylenedioxy bridge. The nitrile groups confer a large dipole moment, allowing the compound to solvate alkali metal cations, while the ether oxygen atoms supply additional lone electron pairs available for coordination. Because the molecular framework contains no active hydrogen, the material is relatively inert toward many weakly basic reagents. These properties are what lead investigators to employ it as a co-solvent, as an electrode interface additive, and as a medium for reactions in which a strongly polar but non-protic environment is required.
In Indonesian laboratories, this solvent is typically found in university and institutional research groups working on energy storage materials, as well as in analytical and synthetic chemistry laboratories that need a polar aprotic medium. It is generally handled at the bench scale, dispensed from its original container for electrolyte formulation, cell assembly trials, and comparative solvent studies. Because the material is supplied by TCI under catalogue number E0108, it is ordinarily ordered as a research-grade reagent rather than as a bulk process chemical.
Laboratory Applications
- Lithium-ion battery electrolyte research: the dual nitrile groups give a high dipole moment that dissolves inorganic lithium salts well, making the solvent suitable for formulating and comparing candidate electrolyte systems.
- Supercapacitor electrolyte formulation: the polar, non-protic character of the molecule supports ionic conduction in double-layer devices where a solvent that dissolves salts without contributing active hydrogen is required.
- Electrode interface additive studies: researchers add this compound in small proportions to examine how the cyano groups coordinate at the electrode surface and influence interfacial behaviour in assembled cells.
- Co-solvent in electrochemical cell testing: blending it with other solvents lets investigators tune overall polarity and cation solvation while keeping the flexible ethylenedioxy bridge available for coordination.
- Polar aprotic reaction medium in synthesis: the absence of active hydrogen makes the framework relatively inert toward many weakly basic reagents, suiting reactions that require a strongly polar but non-protic environment.
Specifications
- Brand: TCI (Tokyo Chemical Industry), catalogue number E0108
- CAS number: 3386-87-6
- Chemical name: Ethylene Glycol Bis(propionitrile) Ether
- Category: Chemistry > Solvents > Fluorinated Ether Solvents and Glycol Ether Solvents
- Pack sizes: supplied in TCI standard research-scale packaging; please confirm the available pack size when ordering
- Storage: keep in the tightly closed original container, in a cool, dry, well-ventilated area away from incompatible reagents
Handling and Storage
Store the container tightly closed in a cool, dry, and well-ventilated location, away from direct sunlight, heat sources, and ignition sources. Keep the material in its original supplier container, or in a clean, chemically compatible, well-sealed glass vessel with a solvent-resistant closure, clearly labelled with the substance name and CAS number. Because this is a nitrile-bearing organic solvent, handle it inside a fume hood and wear appropriate personal protective equipment, including chemical-resistant gloves, safety goggles, and a laboratory coat. Avoid contact with skin and eyes and avoid inhaling vapours. Keep it separated from strong oxidising agents, strong acids, and strong bases. Always consult the manufacturer's safety data sheet before handling, and dispose of residues and contaminated materials in accordance with applicable laboratory chemical waste procedures.
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