Relevant parameters for assessing the environmental impact of some pyridinium, ammonium and pyrrolidinium based ionic liquids.
Several physico-chemical properties relevant to determine the environmental impact of ionic liquids - aqueous solubility, octanol/water partition coefficient, chromatographically derived lipophilicity and infinite dilution diffusion coefficients in water - were measured in ionic liquids based on pyridinium, ammonium and pyrrolidinium cations with bis(trifluoromethylsulfonyl)imide anions. The influence of the presence of hydroxyl or ester groups in the physico-chemical properties of these liquids was checked. It appeared that the presence of functional oxygenated moieties reduces the lipophilicity of ionic liquids and so decreases the risk of bioaccumulation in environment.
Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, UMR 6296, F-63171 Aubière, France.
Yun
Y
Deng
Pascale
P
Besse-Hoggan
Pascale
P
Husson
Martine
M
Sancelme
Anne-Marie
AM
Delort
Piotr
P
Stepnowski
Monika
M
Paszkiewicz
Marek
M
Gołębiowski
Margarida F
MF
Costa Gomes
D002412:Cations / Q000737:chemistry; D055598:Chemical Phenomena; D004058:Diffusion; D004777:Environment; D052578:Ionic Liquids / Q000737:chemistry* / Q000633:toxicity; D008055:Lipids / Q000737:chemistry; D000442:Octanols / Q000737:chemistry; D011726:Pyridinium Compounds / Q000737:chemistry*; D011759:Pyrrolidines / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds; D012995:Solubility; D014867:Water / Q000737:chemistry
D002412:Cations; D052578:Ionic Liquids; D008055:Lipids; D000442:Octanols; D011726:Pyridinium Compounds; D011759:Pyrrolidines; D000644:Quaternary Ammonium Compounds; D014867:Water