A quantitative thermodynamic metric for identifying deep eutectic solvents

Deep eutectic solvents (DESs) are a rapidly expanding class of liquid phase mixtures that offer many useful features. However, there currently exists no widely accepted criterion to identify whether or not a particular mixture is, in fact, a DES. This study introduces a quantitative metric based on...

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Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2023-03, Vol.25 (11), p.7946-795
Main Authors: Like, Bricker D, Uhlenbrock, Christina E, Panzer, Matthew J
Format: Article
Language:English
Subjects:
Eutectics
Liquid phases
Mixtures
Solvents
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Summary:Deep eutectic solvents (DESs) are a rapidly expanding class of liquid phase mixtures that offer many useful features. However, there currently exists no widely accepted criterion to identify whether or not a particular mixture is, in fact, a DES. This study introduces a quantitative metric based on the molar excess Gibbs energy of a eutectic mixture and proposes a threshold value in order to classify a eutectic system as a DES. A threshold value for dimensionless excess Gibbs energy is proposed to assist in establishing true deep eutectic solvents.
ISSN:1463-9076
1463-9084
DOI:10.1039/d3cp00555k