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Título

Effects of Three Ionic Liquids on Microbial Activity of an Organic Soil. Microcalorimetric Study

AutorSixto, Teresa; Ucha, Carlota; Trasar-Cepeda, Carmen CSIC ORCID; Reyes, Otilia; Salgado, Josefa
Palabras claveIonic liquids
Toxicity
Isothermal calorimetry
Soil microbial activity
Fecha de publicación16-nov-2018
EditorMultidisciplinary Digital Publishing Institute
CitaciónProceedings 9(1): 8 (2019)
ResumenIonic liquids are considered as a potential green replacement for traditional volatile organic solvents, but their impact on the environment is not sufficiently studied. The effect of the addition of aqueous solutions of different amounts (from 0% to 75%) of three ionic liquids, two based imidazolium, dimethylimidazolium dimethylphosphate ([MMIM][DMP] and 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF<sub>4</sub>]) and choline dihydrogen phosphate ([Chol][DHP]) on the microbial activity of an acidic, organic soil, was determined in this work. For this propose, an isothermal microcalorimeter, TAM III of TA Instruments was used. This apparatus allows estimating the variation of the metabolic activity through the variation of the heat released after the addition of the ionic liquids (ILs) to the soil. The results showed that the most toxic IL is [BMIM][BF<sub>4</sub>] which presented a large stress effect and subsequent death on soil microorganisms for the highest concentration of the IL. On the contrary, [Chol][DHP] showed stimulation of the microbial activity for all the concentrations.
Versión del editorhttp://dx.doi.org/ 10.3390/ecsoc-22-05861
URIhttp://hdl.handle.net/10261/180700
DOI10.3390/ecsoc-22-05861
ISSN2504-3900
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