When selecting a refrigerant for a certain application what qualities would you look for in the refrigeration?

When selecting a refrigerant for a specific application, key qualities to consider include its thermodynamic properties, such as efficiency and capacity at the desired operating conditions. Additionally, environmental impact is crucial, so factors like ozone depletion potential (ODP) and global warming potential (GWP) should be evaluated. Safety characteristics, including flammability and toxicity, are also important, as well as compatibility with system materials and ease of availability. Lastly, regulatory compliance and cost-effectiveness should be factored into the decision-making process.