The formation of trifluoroacetyliron tetracarbonyl iodide

Ang, H. G.; Cheong, Dong-Wook

doi:10.1016/s0022-1139(00)82164-8

Journal of Fluorine Chemistry

1977

DOI: 10.1016/s0022-1139(00)82164-8

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The formation of trifluoroacetyliron tetracarbonyl iodide

H. G. Ang¹,

Dong-Wook Cheong²

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Cited by 3 publications

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“…Sci. : Processes Impacts, 2015, 17, 674-682 | 679 46-48 Examples of desorption log K d vs. freshly spiked log K d for SMX are 1.67 vs. 1.46 or 1.64 vs. 1.51, respectively, 46,47 and for EE2 are 2.74 vs. 2.67 or 2.79 vs. 2.51, respectively 47,48. Collectively, this indicates that K d values generally either stay the same or mildly increase with contaminant desorption.…”

mentioning

confidence: 99%

Sorption and desorption of diverse contaminants of varying polarity in wastewater sludge with and without alum

Morissette

Duy

Arp

et al. 2015

Environ. Sci.: Processes Impacts

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Sewage sludge sorption and desorption measurements were conducted for nine diverse contaminants of varying polarity: caffeine, sulfamethoxazole, carbamazepine, atrazine, estradiol, ethinylestradiol, diclofenac, and, for the first time desethylatrazine and norethindrone. Two types of sorption behaviour were observed. Compounds with a log octanol-water partition coefficient, log Kow, below 3 showed little or no sorption over 48 hours of shaking, while compounds with log Kow over 3 showed 30 to 90% sorption within the first few minutes. After 6 hours of shaking, mass loss through suspected biotransformation became evident for some compounds. At the pH range considered (5.7-6.7), diclofenac (pKa 4.0, log Kow 4.5) was the only compound in which pH dependent sorption could be quantified. The log sewage sludge-water distribution coefficients, log Kd, ranged from 0.2 to 2.9, and, as expected, increased with increasing log Kow of the compound and organic carbon (OC) content of the sewage sludge. A sewage sludge precipitated with alum had a substantially lower Kd values, as well as lower OC content, compared to alum-free sludge. Desorption was studied by sequentially replacing supernatant water. With each water replacement, log Kd values tended to either remain similar (following a linear isotherm) or in some cases increase (following a Freundlich-type isotherm). The length of time required to restore equilibrium increased with each rinsing step. A literature review of reported Kd values compared well with the alum-free sludge data, but not the alum-sludge data. Sewage sludge Kd across the literature appear more consistent with increasing Kow.

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mentioning

confidence: 99%

Sorption and desorption of diverse contaminants of varying polarity in wastewater sludge with and without alum

Morissette

Duy

Arp

et al. 2015

Environ. Sci.: Processes Impacts

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ChemInform Abstract: THE FORMATION OF TRIFLUOROACETYLIRON TETRACARBONYL IODIDE

Ang¹,

Cheong²

1977

Chemischer Informationsdienst

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Iron, ruthenium and osmium: survey for the year 1977

McCleverty

1981

Journal of Organometallic Chemistry

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The formation of trifluoroacetyliron tetracarbonyl iodide

Cited by 3 publications

References 7 publications

Sorption and desorption of diverse contaminants of varying polarity in wastewater sludge with and without alum

Sorption and desorption of diverse contaminants of varying polarity in wastewater sludge with and without alum

ChemInform Abstract: THE FORMATION OF TRIFLUOROACETYLIRON TETRACARBONYL IODIDE

Iron, ruthenium and osmium: survey for the year 1977

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