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Research Perfluorobutane Sulfonate FC-98 surfactant chemicals

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  • perfluorobutane, perfluorobutane Suppliers and ...

    Potassium perfluorobutane sulfonate (FC-98) CAS No.: 29420-49-3 Molecular formula: C 4 F 9 SO 3 K Appearance: White powder Assay: 95% min. PH: 5-7 Density: 0.69 g/cm3 Free F-: 100ppm max.

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  • surfactant chemicals, surfactant chemicals Suppliers

    Chemicals Chemical Surfactants Coconut Shell Granular Activated Carbon Water Treatment Chemicals Chemical Auxiliary Agent Paper Chemicals ... Research Perfluorobutane Sulfonate FC-98 surfactant chemicals. US 50.00 Kilogram. 1 ... organo fine chemicals Agricultural silicone surfactant XJ2000 for spray modifier. US 12.00 Kilogram. 1000 ...

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  • Potassium perfluorobutane sulfonate (FC-98)

    Sulfonate perfluorinated alkyl acids evaluated: perfluorobutane sulfonate (PFBS), perfluorohexane-1-sulphonic acid (PFHxS), or perfluorooctane sulfonate (PFOS).

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  • chemical surfactants, chemical surfactants Suppliers

    2020-10-1 · Perfluorobutane sulfonate (PFBS) of a shorter carbon chain (C4) has been introduced as a surfactant substitute and obtained wide application (Renner, 2006). Previous studies claim that PFBS shows less potential to bioaccumulate in animals and is thus relatively less toxic than PFOS due to increased solubility, fast elimination, and reduced ...

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  • Sonochemical degradation of perfluorinated

    2015-12-17 · Potassium perfluorobutane-1-sulfonate (PFBS), potassium perfluorohexane-1-sulfonate (PFHS), and potassium perfluorooctane-1-sulfonate (PFOS) were provided by 3 M. Ammonium acetate (>99%) and methanol (HR-GC > 99.99%) were obtained from EMD Chemicals Inc. Aqueous solutions were prepared with purified water using a Milli-Q system (18.2 mΩ cm ...

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  • Basic Information on PFAS | Per- and Polyfluoroalkyl ...

    2021-4-6 · GenX chemicals have been found in surface water, groundwater, finished drinking water, rainwater, and air emissions in some areas. As part of EPA’s draft toxicity assessment, EPA has developed draft oral reference doses (RfDs) for GenX chemicals. Perfluorobutane sulfonic acid (PFBS) has been used as a replacement chemical for PFOS.

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  • Prenatal Exposure to Perfluoroalkyl Substances and IQ ...

    A new fluorinated surfactant contaminant in biota: perfluorobutane sulfonamide in several fish species. Environ Sci Technol 50 (2):669–675, PMID: 26649981 , doi: 10.1021/acs.est.5b05058 . Crossref , Medline , Google Scholar

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  • Aaj 03/03/2009 - POPs

    2009-6-4 · Potassium perfluoroethyl cyclohexyl sulfonate (FC-98; CAS no. 67584-42-3); may be used as an anti-erosion agent <0.1% (mainly 0.0075% to 0.075%) in aviation hydraulic oils, anti-reflective coating and electro-optical liquid crystal displays.

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  • First assessment on degradability of sodium p

    1. Introduction Perfluorooctane sulfonate (PFOS) is an environmental pollutant and belongs to the chemical group of perfluoroalkyl substances. PFOS has been widely used for various commercial applications for more than 50 years. 1 It has been found to be persistent, 2 toxic and bioaccumulative 3 in the environment, and has been detected worldwide in the environment, as well as in human blood ...

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  • Risk to human health related to the presence of ...

    In addition, data on PFASs in food from a 3‐year EU research project (PERFOOD4 4 PERFOOD is a consortium of several European research institutions which collaborate in an FP7 EU project with the aim to improve the analytical tools for the determination of PFASs in food items, to contribute to the understanding of PFASs transfer from the ...

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  • Frontiers | Large Enrichment of Anthropogenic

    The composition of bacteria inhabiting the sea-surface microlayer (SML) is poorly characterized globally and yet undescribed for the Southern Ocean, despite their relevance for the biogeochemistry of the surface ocean. We report the abundances and diversity of bacteria inhabiting the SML and the subsurface waters (SSL) determined from a unique sample set from a polar coastal ecosystem ...

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  • Discovery and Implications of C2 and C3

    2019-5-25 · Historically, 3M aqueous film-forming foams (AFFFs) were released at U.S. military and civilian sites to extinguish hydrocarbon-based fuel fires. To date, only C4–C10 homologues of the perfluoroalkyl sulfonic acids (PFSAs) are documented in 3M AFFFs. Perfluoroethanesulfonate (PFEtS) and perfluoropropanesulfonate (PFPrS), two ultra-short-chain PFSAs, were discovered by liquid …

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  • Fluorinated alternatives to long-chain perfluoroalkyl ...

    2013-10-1 · The bioaccumulation potential, in terms of serum elimination half-life, of PFBA, PFBS, PFHxA, PFHxS, PFOA and PFOS in humans and mammals has been well studied (see Table 1).In general, PFBA, PFBS and PFHxA, which can be used as alternatives to their higher homologues in some cases or occur as undesired byproducts or degradation products of PBSF- or 6:2 fluorotelomer-based …

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  • Ecological Considerations of Per- and Polyfluoroalkyl ...

    Per- and polyfluoroalkyl substances (PFASs) have been detected around the globe in drinking water, in various media at release sites, in human blood serum, and in non-human biota tissue. These compounds are emerging contaminants due to the rapidly evolving regulatory landscape, which is driven by advances in toxicological and risk assessment knowledge emanating from academia and government ...

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  • Perfluorooctane Sulfonate (PFOS) in Drinking Water -

    2021-4-22 · PFOS contains both hydrophobic and hydrophilic functional groups and is thus expected to behave differently than traditional hydrophobic chemicals. Due to its surfactant properties, the octanol:water partition coefficient (LogK ow) cannot be determined directly because multiple layers are formed in octanol/water. Moreover, the parameters ...

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  • Prenatal Exposure to Perfluoroalkyl Substances and IQ ...

    A new fluorinated surfactant contaminant in biota: perfluorobutane sulfonamide in several fish species. Environ Sci Technol 50 (2):669–675, PMID: 26649981, 10.1021/acs.est.5b05058. [Google Scholar] Ehresman DJ, Froehlich JW, Olsen GW, Chang SC, Butenhoff JL. 2007.

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  • First assessment on degradability of sodium p

    First assessment on degradability of sodium p-perfluorous nonenoxybenzene sulfonate (OBS), a high volume alternative to perfluorooctane sulfonate in fire-fighting foams and oil production agents in China†. Yixiang Bao a, Yingxi Qu a, Jun Huang * a, Giovanni Cagnetta a, Gang Yu a and Roland Weber b a State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC ...

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  • Perfluoroalkyl Sulfonates Cause Alkyl Chain Length ...

    Silvia Bijland, Patrick C.N. Rensen, Elsbet J. Pieterman, Annemarie C.E. Maas, José W. van der Hoorn, Marjan J. van Erk, Louis M. Havekes, Ko Willems van Dijk, Shu-Ching Chang, David J. Ehresman, John L. Butenhoff, Hans M.G. Princen, Perfluoroalkyl Sulfonates Cause Alkyl Chain Length–Dependent Hepatic Steatosis and Hypolipidemia Mainly by Impairing Lipoprotein Production in APOE*3-Leiden ...

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  • Effects of Perfluorooctanoic Acid Exposure during ...

    In the year 2000, production of PFOS was estimated at over 3500 metric tons and PFOA in excess of 500 metric tons. Although the production of PFOS by its major manufacturer was phased out by the end of 2002, replacement PFAA chemicals (such as PFOA and perfluorobutane sulfonate, PFBS) are filling its void in the consumer and industrial markets.

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  • Ecological Considerations of Per- and Polyfluoroalkyl ...

    Per- and polyfluoroalkyl substances (PFASs) have been detected around the globe in drinking water, in various media at release sites, in human blood serum, and in non-human biota tissue. These compounds are emerging contaminants due to the rapidly evolving regulatory landscape, which is driven by advances in toxicological and risk assessment knowledge emanating from academia and government ...

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  • Guidelines for Canadian Drinking Water Quality:

    2009-6-5 · Chemical Research in Toxicology, 2004, 17(6): 767-775 doi: 10.1021/tx034222x 71 Office of Pollution Prevention and Toxics, Docket AR226-0163, ed. Additional Characterization of Metabolites of T-6292, T-6293 and T-6294 from Rat and Human Hepatocytes ...

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  • Polyfluorinated Compounds: Past, Present, and Future ...

    2021-4-22 · 8.6.3 Recommended interspecies extrapolation approach. The recommended approach for interspecies extrapolation is the use of a PBPK model for the calculation of the AK UF component of the CSAF, using steady-state plasma concentrations as the dose metric. The use of plasma concentrations ensures the relevance of the dose metric to adverse effects that occur in a variety of organs.

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  • CAS Number Search - Chemsrc

    2021-3-13 · As research and regulatory interest in these chemicals have increased, commercial laboratories have found a market for high purity standards and mass labeled internal standards, making it possible for more analytical laboratories to take up this research.

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  • Sorption of Poly- and Perfluoroalkyl Substances

    2019-3-11 · Despite growing concerns about human exposure to perfluorooctanoate (PFOA) and perfluorooctanesulfonate (PFOS), other poly- and perfluoroalkyl substances (PFASs) derived from aqueous film-forming foams (AFFFs) have garnered little attention. While these other PFASs may also be present in AFFF-impacted drinking water, their removal by conventional drinking-water treatment is …

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  • Organic fluorine content in aqueous film forming

    Environmental contextTotal organofluorine and known fluorosurfactants were quantified in 11 aqueous film forming foams (AFFFs) used to extinguish fires in Ontario, Canada, and one commercial AFFF product. By comparing the concentrations of known fluorosurfactants with the total organofluorine, less than 10 of the fluorosurfactants were identified in half of the samples. Our biodegradation ...

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  • Complete HTML – Survey of Chemical Substances in

    2008-10-22 · As a substitute for PFOS, 3M is now, for example, producing and trading perfluorobutane sulfonate (PFBS) and its derivatives. The chain length of PFBS is the half of PFOS, and chain lengths of less than 6 carbons are in these types of chemicals considered to be …

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  • (PDF) Effects of Perfluoroalkyl Acids on In Ovo Toxicity ...

    The neurotoxic effects of PFOS, PFOA, perfluorooctane sulfonamide (PFOSA) and perfluorobutane sulfonate (PFBS) were assessed in undifferentiated and differentiated PC12 cell lines, a standard in vitro model for neuronal development .Various endpoints were studied: DNA synthesis, cell numbers and growth, oxidative stress, cell viability, and ...

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  • Chemical Oxidation of Poly- and Perfluoroalkyl ...

    2019-8-28 · Perfluorobutane sulfonate PFBS C 4F 9SO 3-Perfluorohexane sulfonate PFHxS C 6F 13SO 3-Perfluoroheptane sulfonate PFHpS C 7F 15SO 3-Perfluorooctane sulfonate PFOS C 8F 17SO 3-Table 4-1. Full names, abbreviations, and molecular formulae for PFAA analytes measured in this study.

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  • Guidelines for Canadian Drinking Water Quality:

    2021-4-22 · 8.6.3 Recommended interspecies extrapolation approach. The recommended approach for interspecies extrapolation is the use of a PBPK model for the calculation of the AK UF component of the CSAF, using steady-state plasma concentrations as the dose metric. The use of plasma concentrations ensures the relevance of the dose metric to adverse effects that occur in a variety of organs.

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  • (PDF) Perfluoroalkyl Acids: A Review of Monitoring

    Academia.edu is a platform for academics to share research papers.

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  • References – PFAS — Per- and Polyfluoroalkyl

    Perfluorinated Chemicals (PFCs): Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonate (PFOS) Information Paper. . Washington, D. C.: Remediation and Reuse Focus Group. Federal Facilities Research Center.

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  • Method for preparing storage stable colloids - Sonus ...

    Agents for enhancing the contrast in a diagnostic ultrasound procedure comprise colloidal dispersions of the liquid-in-liquid type, i.e., emulsions or microemulsions, in which the dispersed liquid phase is a high vapor pressure chemical which undergoes a phase change from a dispersed liquid to a highly echogenic dispersed gaseous foam or kugelschaum following administration to an organism.

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  • Phase shift colloids as ultrasound contrast agents -

    Disclosed herein are agents for enhancing the contrast in a diagnostic ultrasound procedure. These agents comprise colloidal dispersions of the liquid-in-liquid type, i.e., emulsions or microemulsions, in which the dispersed liquid phase has a boiling point at or below the body temperature of the organism to be studied and thus undergoes a phase change from a dispersed liquid to a highly ...

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  • Effects of perfluorooctanesulfonate and ...

    Perfluorobutanesulfonate (PFBS), as a substitute for perfluorooctanesulfonate (PFOS), is widespread in the environment and biotic samples as well as PFOS. To investigate effects of PFOS and PFBS on the growth and sexual development of amphibians, we exposed Xenopus laevis tadpoles at a series of concentrations of PFOS and PFBS (0.1; 1; 100; 1,000 μg/l) as well as 17-beta-estradiol (E2, 100 ng ...

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  • Half-Life of Serum Elimination of

    Rodgers K, Udesky J, Rudel R and Brody J (2018) Environmental chemicals and breast cancer: An updated review of epidemiological literature informed by biological mechanisms, Environmental Research, 10.1016/j.envres.2017.08.045, 160, (152-182), Online publication date: 1-Jan-2018.

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  • (PDF) Effects of Perfluoroalkyl Acids on In Ovo Toxicity ...

    The neurotoxic effects of PFOS, PFOA, perfluorooctane sulfonamide (PFOSA) and perfluorobutane sulfonate (PFBS) were assessed in undifferentiated and differentiated PC12 cell lines, a standard in vitro model for neuronal development .Various endpoints were studied: DNA synthesis, cell numbers and growth, oxidative stress, cell viability, and ...

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  • STUDY ON TREATMENT TECHNOLOGIES FOR Title ...

    2017-10-5 · PFBuS Perfluorobutane Sulfonate CF 3(CF 2)3SO 3K 338.2 29420-49-3 PFHxS Perfluorohexane Sulfonate CF 3(CF 2)5SO 3K 438.2 3871-99-6 PFOS Perfluorooctane Sulfonate CF 3(CF 2)7SO 3K 538.2 2795-39-3 Full name Abbr. name M. W. Molecular Structure CAS No. Effluents of municipal WWTPs were suspected as one important source of PFCs in water environment.

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  • CSIRO PUBLISHING | Environmental Chemistry

    Environmental context Five years ago a well-cited review of the sources and fate of perfluorinated carboxylates was published. The findings of that review are revisited here in light of recently published measurement and modelling studies of the sources and fate of these compounds, and an attempt is made to reconcile the many seemingly disparate findings reported. This review also aims to ...

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  • Perfluorinated compounds in landfill leachate and

    Perfluorinated compounds (PFCs) are a class of persistent organic pollutants (POPs) with potential major health and environmental concerns. PFCs are thermally and chemically stable, and do not readily degrade in the environment. PFCs have been detected in numerous environmental matrices, including surface water, ground water and sediment. PFCs are used for surface treatments for paper and ...

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  • Methods Used to Treat Perfluoroalkyl Substances

    2020-2-4 · Figure 1 . Chemical structures of sele cted p er fluorinated chemicals : Perfluorooctanoic acid ( PFOA ) and Perfluorooctane sulfonate ( PFOS ) . From Post, G. B., Gleason, J. A., & Cooper, K. R. (2017). Key scientific issues in developing drinking water guidelines for perfluoroalkyl acids: Contaminants of emerging concern.

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  • Perfluorinated compounds in landfill leachate from ...

    Perfluorinated compounds (PFCs) are a class of anthropogenic chemicals incorporated over six decades into a wide range of industrial and consumer-use products including surface treatments for carpets and textiles, paper and packaging, non-stick cookware, firefighting foams and insecticides. The extremely strong carbon-fluorine bond, 'the strongest in organic chemistry', makes them thermally ...

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  • Nanomaterials | Free Full-Text | Nano-Sized

    Recent efforts have been directed towards the design of efficient and contaminant selective remediation technology for the removal of perfluorinated compounds (PFCs) from soils, sediments, and aquatic environments. While there is a general consensus on adsorption-based processes as the most suitable methodology for the removal of PFCs from aquatic environments, challenges exist regarding the ...

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  • JP2004533511A - Bis (perfluoroalkanesulfonyl) imide

    JP2004533511A JP2002589126A JP2002589126A JP2004533511A JP 2004533511 A JP2004533511 A JP 2004533511A JP 2002589126 A JP2002589126 A JP 2002589126A JP 2002589126 A JP2002589126 A JP 2002589126A JP 2004533511 A JP2004533511 A JP 2004533511A Authority JP Japan Prior art keywords bis imide perfluoroalkanesulfonyl carbon atoms solution Prior art date 2001 …

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