The application and safe risk of 2-Ethoxyethanol
2-Ethoxyethanol is a solvent used widely in commercial and industrial applications. It is a clear, colorless, nearly odorless liquid that is miscible with water, ethanol, diethyl ether, acetone, and ethyl acetate. It is also known as 2EE; cellosolve; cellosolve solvent; Dowanol EE; EGEE; ektasolve ee; the Molecular Formula:C4H10O2, Molecular Weight: 90.12, and CAS Registry Number:110-80-5.
The 2-Ethoxyethanol is characterized by their wide range of hydrophilic/hydrophobic balances. It is used as diluents and levelling agents in the manufacture of paints and baking finishes. It is used in the manufacture of nitrocellulose and combination lacquers.
The 2-Ethoxyethanol is also used as an additive in brake fluid. It is formulated for dying textiles and leathers and for insecticides and herbicides. It provides performance in cleaners products with oil-water dispersions. It is used in printing industries as they have a slow evaporation rate. The 2-Ethoxyethanol can be used as a fixative for perfumes, germicides, bactericides, insect repellents and antiseptic, an additive for jet fuel to prevent ice buildup.
The 2-Ethoxyethanol is useful as solubilizers and phase transfer catalysts. It offers the property required as an inert reaction medium chemical reaction due to their low chemical reactivity. 2-Ethoxyethanol is suitable particularly for organometallic and polymerization reactions. 2-Ethoxyethano which contain hydroxyl group is also useful chemical intermediate.
2-Ethoxyethanol’s production and use as a solvent may result in its release to the environment through various waste streams. If released to air, a vapor pressure of 5.31 mm Hg at 25 deg C indicates it will exist solely as a vapor in the ambient atmosphere.
Vapor-phase 2-Ethoxyethanol(CAS NO:110-80-5) will be degraded in the atmosphere by reaction with photochemically produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 1 day. If released to soil, ethylene glycol monoethyl ether will have very high mobility based on an estimated Koc value of 16. Volatilization of 2-Ethoxyethanol is not expected to be an important environmental fate process from moist soil surfaces given a Henry's Law constant of 4.7X10-7 atm-cu m/mole.
Volatilization from dry soil surfaces may occur based on the vapor pressure. According to several screening studies, biodegradation of 2-Ethoxyethanol is expected to occur in soil and water. If released to water, 2-Ethoxyethanol is not expected to adsorb to suspended solids and sediment based on the estimated Koc value. It will be essentially non-volatile from water surfaces based on its Henry's Law constant. 2-Ethoxyethanol reached 81% of its theoretical BOD in 5 days using an activated sludge inoculum.
Hydrolysis is not expected to be an important environmental fate process since this compound does not possess functional groups that undergo hydrolysis under environmental conditions. Occupational exposure to 2-Ethoxyethanol may occur through inhalation and dermal contact with this compound at workplaces where 2-Ethoxyethanol is produced or used. The general population may be exposed to 2-Ethoxyethanol through the inhalation of ambient air.
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