Fate and Effect of Hydroxyl Functionalized Imidazolium Ionic Liquids on Biological Systems

Izzati Zahidah binti Othman, ‘Izzati Zahidah (2010) Fate and Effect of Hydroxyl Functionalized Imidazolium Ionic Liquids on Biological Systems. [Final Year Project] (Unpublished)

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1-(2-hydroxyethyl)-3-methyl imidazolium chloride [IM12OHCl], 1-(3-
hydroxypropyl)-3-methyl imidazolium chloride [IM13OHCl] and 1-(6-hydroxyhexyl)-
3-methyl imidazolium chloride [IM16OHCl] have been synthesized in the laboratory by
reacting 1-methylimidazole with 2-chloroethanol, 3-chloropropanol, and 6-
chlorohexanol, while 1-(2-hydroxyethyl)-3-ethyl imidazolium chloride [IM22OHCl]
has been synthesized by reacting 1-ethylimidazole with 2-chloroethanol. The toxicity of
these ionic liquids are determined according to OECD Guideline 203. Six aquarium
filled with 5 L of lake water are prepared. The water temperature is kept at 23 ±1 °C
and aerated to restore the concentration of dissolved oxygen to at least 60% of its air
saturation value. 10 fish are placed in each aquarium and the aquariums are kept under
normal laboratory illumination with a daily photoperiod of 12 h. A limit test is
performed at the concentration of 100 mg L-1 of each synthesized ionic liquid and left
for 96 hours. After 96 hours, 2 fish died in the aquarium containing 1-(2-hydroxyethyl)-
3-ethyl imidazolium chloride, while no fish died in the other aquariums. The full
toxicity test according to OECD Guideline 203 is performed using 1-(2-hydroxyethyl)-
3-ethyl imidazolium chloride at five concentrations from 20.0 to 100.0 mg/L and result
shows that no fish died. It is concluded that all the four ionic liquids tested are non-toxic
to freshwater fish

Item Type: Final Year Project
Subjects: T Technology > TP Chemical technology
Departments / MOR / COE: Engineering > Chemical
Depositing User: Users 5 not found.
Date Deposited: 03 Nov 2011 11:23
Last Modified: 25 Jan 2017 09:43
URI: http://utpedia.utp.edu.my/id/eprint/1182

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