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Description
Ethylene Glycol from TCI, supplied under catalogue code E0105, is the simplest diol — a compound carrying two hydroxyl groups on a two-carbon chain. It is among the most commonly encountered alcohol solvents in the laboratory because it combines high polarity, complete miscibility with water, and a boiling point far above that of water. Its roles are highly varied: a solvent for high-temperature reactions, a heat-transfer medium in cooling circuits and heating baths, an acetal-forming reagent used to protect carbonyl groups, and a diol monomer in polyester synthesis. Because of this breadth of function, the compound is a basic requirement in almost every chemistry laboratory.
The characteristics that make ethylene glycol the preferred choice are its combination of moderate viscosity, hygroscopic nature, low vapour pressure, and wide liquid range. The low vapour pressure allows prolonged heating without meaningful loss of solvent — something that cannot be achieved with ethanol or methanol. Its ability to depress the freezing point of aqueous mixtures makes it the standard medium for cold baths and sub-zero coolant circulation. Its two hydroxyl groups are also reactive, so beyond serving as a solvent the material can participate directly in chemical transformations rather than acting purely as an inert carrier.
In Indonesian laboratories this material occupies a routine place on the solvent shelf. It is drawn on by university teaching and research laboratories, industrial quality-control units, and analytical service laboratories alike — wherever reactions must be run above the boiling point of water, wherever recirculating chillers and constant-temperature baths need a working fluid, and wherever carbonyl protection or polyester chemistry forms part of the synthetic route. Its versatility means a single container typically serves several unrelated workflows within the same facility.
Laboratory Applications
High-temperature reaction solvent: the wide liquid range and low vapour pressure let reactions be held well above the boiling point of water for extended periods without appreciable solvent loss.
Heat-transfer fluid for heating baths: moderate viscosity and a high boiling point allow stable, even thermal contact in constant-temperature baths where volatile alcohols would evaporate away.
Coolant and cold-bath medium: its capacity to depress the freezing point of water-based mixtures makes it the standard working fluid for sub-zero circulation and chiller loops.
Carbonyl protection through acetal formation: the two hydroxyl groups react with carbonyl compounds to form cyclic acetals, giving a reliable protecting-group strategy in multi-step synthesis.
Diol monomer in polyester synthesis: as a difunctional alcohol it serves as the glycol building block for polyester preparation and related polycondensation work in research settings.
Specifications
Brand: TCI, catalogue code E0105
CAS number: 107-21-1
Category: Chemistry > Solvents > Alcohol Solvents
Physical form: liquid, completely miscible with water
Pack sizes: available in standard TCI laboratory pack sizes — please confirm the currently available packaging when ordering
Storage note: keep in a tightly closed container, protected from moisture uptake
Handling and Storage
Store ethylene glycol in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Because the compound is hygroscopic, keep containers tightly closed at all times and minimise the period they stand open, since absorbed atmospheric moisture will alter its behaviour in moisture-sensitive reactions. Original manufacturer bottles or tightly sealed glass containers are suitable; label all decanted portions clearly. Handle in a fume hood or well-ventilated space using gloves, safety glasses, and a laboratory coat, and avoid skin contact and ingestion. Clean up spills promptly, as the liquid leaves a persistent slippery film on bench and floor surfaces. Dispose of used material through the laboratory's chemical waste stream rather than the drain.
