Table 2.

A summary of solvent selection criteria required to maximize solvent recycling potentials and minimize impacts on the environment, health, and safety (Alder et al., 2016; Henderson et al., 2011; Jiménez-González et al., 2002)

Categories	Criteria
Waste	Low water miscibility and can be separated from water easily
	Easily separable from a mixture of multiple solvents
	Low vapor pressure and high boiling point
Environment	Low photochemical ozone creation potential (POCP), odor score (high vapor pressure → low score)
	Low toxicity (acute and chronic) toward the environment and aquatic species can biodegrade
Health	Low carcinogenic, mutagenic effects, and not considered harmful to reproductive health Solvents exposure level falls within the occupational exposure limits (OEL)
Safety	Low flammability and explosivity (based on boiling point, flash point, and auto ignition temperature)
	Low to no intrinsic reactivity of solvents (self-reaction, thermal decomposition, reaction with acidic or basic reagents, forms peroxide over time)