1-Ethyl-3-methylimidazolium ethyl sulfate CAS 342573-75-5

Product Profile: 1-Ethyl-3-methylimidazolium ethyl sulfate

Description

1-Ethyl-3-methylimidazolium ethyl sulfate, commonly known as EMIM EtSO4, is an imidazolium-based ionic liquid notable for its role as an effective and more environmentally benign solvent. Its applications in the pharmaceutical field include processing biomass to yield valuable chemical intermediates, serving as a medium for enzymatic catalysis, and exploring its potential in advanced drug delivery systems. Key advantages are its negligible vapor pressure, good thermal stability, miscibility with water, and an improved biodegradability profile relative to many other ionic liquids.

Properties Table

Property	Value
Name	1-Ethyl-3-methylimidazolium ethyl sulfate
CAS Number	342573-75-5
Chemical Formula	C8​H16​N2​O4​S
Molecular Weight	$236.29\text{ g/mol}$
Appearance	Colorless to pale yellow, viscous liquid
Melting Point	Below $-10\text{ °C}$ (Liquid at room temperature)
Density	Approximately 1.21 g/cm3 at 25 °C
Viscosity	Approximately $70-90 \text{ mPa·s (cP) at } 25 \text{ °C}$
Solubility	Miscible with water; soluble in many polar organic solvents
Purity	>98% (Assumed standard industry value)
Storage	Store in a cool, dry place in a tightly sealed container. Hygroscopic.
Primary Application Area	Green solvent, Biomass processing, CO2 capture, Pharmaceutical synthesis, Electrolyte

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