Abstract：
:We investigated the effects on the growth of the anaerobic bacterium, Clostridium sp., of the ionic liquid, 1-methoxyethyl-3-methyl imidazolium [MOEMIM](+), derived from imidazolium cation and paired with one of a variety of counter-ions, viz., tetrafluoroborate [BF₄]⁻, hexafluorophosphate [PF₆]⁻(,) trifluoroacetate [CF₃COO]⁻, bis(trifluoromethane)sulfonamide [Tf₂N]⁻, methane sulfonate [OMS], and 1-butyl-3-methyl imidazolium tetrafluoroborate [BMIM][BF₄]. These anions, in association with [MOEMIM](+) lowered the growth rate of the bacterium, showing the following trend: [Tf₂N]⁻ ≧ [PF₆]⁻ > [BF₄]⁻ > [CF₃COO]⁻ > [OMS]⁻. Anions incorporating fluorine were more toxic than those without it, and their toxicity rose with an increase in the number of fluorine atoms. Also, [MOEMIM](+)[BF₄]⁻ was less toxic than [BMIM](+)[BF₄]⁻, probably due to the presence of a methoxyethyl functional group integrated in the cation side chain.
journal_name
Chemospherejournal_title
Chemosphereauthors
Wang H,Malhotra SV,Francis AJdoi
10.1016/j.chemosphere.2010.11.049subject
Has Abstractpub_date
2011-03-01 00:00:00pages
1597-603issue
11eissn
0045-6535issn
1879-1298pii
S0045-6535(10)01356-1journal_volume
82pub_type
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