Phase equilibrium in the ternary system water-ethylene glycol-dimethyl sulfoxide

The ternary system water-ethylene glycol-dimethyl sulfoxide (H2O-EG-DMSO) was investigated by differential scanning calorimetry in the temperature range of 188-298 K. In the concentration range from similar to 10 to similar to 50 mol% DMSO, crystallization or glass formation are not observed when the temperature is lowered to 188 K. Significant supercooling of the solution in this composition range is explained by the existence of spatial networks of H2O and EG.

Automated summary

The ternary system water-ethylene glycol-dimethyl sulfoxide (H2O-EG-DMSO) was studied using differential scanning calorimetry in the temperature range of 188-298 K. Significant supercooling in the solution within a specific concentration range is explained by the spatial networks of H2O and EG.