Potentiometric Water Sensor For Eutectic Solvents Containing Choline Chloride and Ethylene Glycol.

ABSTRACT: Electrochemical reprocessing of metals using eutectic solvents (ESs) is a promising approach due to its availability, cost-effectiveness, ease of preparation, and environmental benefits. However, a significant challenge associated with ESs is their tendency to absorb moisture from the atmosphere, which can impede and alter electrochemical recovery processes. Here, we examine a novel electrochemical method for quantifying the amount of water content absorbed by a commonly used ES formed from choline chloride and ethylene glycol (ChCl:2EG). ChCl:2EG is exposed to the open atmosphere for over 8 days with Cu²⁺ ions initially present at 10 mM. By simply analyzing the relative reduction potentials of the Cu^2+/+ redox couple against the Cu^+/0 redox couple, formed

SUBMITTER: Al-Jaafari HAS 

PROVIDER: S-EPMC12290665 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature