Refrigerants, essential to heating and cooling systems, are estimated to be used in large quantities daily (approximately 850 million kilograms). While advancements on past generations of refrigerants have reduced toxicity and flammability, current hydrofluorocarbon (HFC) refrigerants are being phased out due to their high global warming potential (GWP). Recycling and repurposing HFCs is challenging, as many are azeotropic mixtures that cannot be separated using conventional distillation. Ionic liquids (ILs), salts with melting points below 100ºC and negligible vapor pressure, are promising alternatives for extractive distillation due to their optimizable physical properties. Using a Hiden Intelligent Gravimentric Analyzer (IGA), refrigerant solubility and diffusivity in ILs over a range of temperatures and pressures can be measured to identify suitable entrainers. This research addresses challenges that come with the recycling and repurposing of low-GWP refrigerants, supporting green chemistry and sustainable energy initiatives.