Determination of the Water Content of an Ionic Liquid by TGA-MS - METTLER TOLEDO

Determination of the Water Content of an Ionic Liquid by TGA-MS

Introduction

Ionic liquids are salts that are liquid at room temperature. They exhibit many properties that make them extremely attractive for a number of applications. They are thermally stable, non-flammable, non-volatile, conduct electricity, have a relatively high heat capacity, and have very good dissolving properties for many substances. It is therefore not surprising that they are used in numerous applications, for example as electrolytes in fuel cells or batteries; thermofluids; solvents, and so on. An important quality parameter of an ionic liquid is its water content which can be determined using TGA-MS. The water content determined using this method was confirmed by titration measurements.

Sample: 1-ethyl-3-methylimidazolinum methyl sulfate (EMIMS, CAS 516474-01-4)

1-ethyl-3-methylimidazolinum methyl sulfate
1-ethyl-3-methylimidazolinum methyl sulfate

Measuring cell: TGA-MS Volumetric Karl-Fisher Titrator

Determination of the Water Content of an Ionic Liquid by TGA-MS
Determination of the Water Content of an Ionic Liquid by TGA-MS

Determination of the Water Content of an Ionic Liquid by TGA-MS | Thermal Analysis Handbook No.HB616 | Application published in METTLER TOLEDO TA Application Handbook Evolved Gas Analysis