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Biodegradability of anionic surfactants
1995Like all surfactants, anionic surfactants (‘anionics’) are surface-active compounds being composed of a hydrophobic alkyl chain which is connected to one or two hydrophilic groups. In aqueous solutions, anionics dissociate into a negatively charged anion and the (positively charged) counterion.
J. Steber, H. Berger
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Interaction of Anionic Gemini Surfactants with Other Surfactants
Journal of Dispersion Science and Technology, 2014The interaction of anionic gemini surfactants with other surfactants (such as anionic, cationic, nonionic) was systematically overviewed, paying attention to synergism observed in various properties. These mixed systems were found to show remarkable synergism in micelle formation.
Sakshi Tyagi, Vinod Kumar Tyagi
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Langmuir, 1989
Determination des concentrations critiques micellaires du dodecylsufate de sodium dans des solutions de NaCl, CaCl 2 et MgCl ...
Kevin L. Stellner, John F. Scamehorn
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Determination des concentrations critiques micellaires du dodecylsufate de sodium dans des solutions de NaCl, CaCl 2 et MgCl ...
Kevin L. Stellner, John F. Scamehorn
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Journal of Dispersion Science and Technology, 2018
Surfactant based enhanced oil recovery (EOR) is an interesting area of research for several petroleum researchers. In the present work, individual and mixed systems of anionic and cationic surfactants consisting of sodium dodecyl sulphate (SDS) and ...
R. Kumari +3 more
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Surfactant based enhanced oil recovery (EOR) is an interesting area of research for several petroleum researchers. In the present work, individual and mixed systems of anionic and cationic surfactants consisting of sodium dodecyl sulphate (SDS) and ...
R. Kumari +3 more
semanticscholar +1 more source
Sensors and Actuators B: Chemical, 2005
Abstract An anionic surfactant ion-sensitive field-effect transistor (anionic surfactant-FET) based on a hydrophobic quaternary ammonium salt, tetrahexadecylammonium bromide was developed. The anionic surfactant-FET shows an almost Nernstian response to sodium dodecylbenzenesulfonate (NaDBS) ion in the concentration range from 1.0 × 10 −6 to 1.0 ...
Takashi Masadome +4 more
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Abstract An anionic surfactant ion-sensitive field-effect transistor (anionic surfactant-FET) based on a hydrophobic quaternary ammonium salt, tetrahexadecylammonium bromide was developed. The anionic surfactant-FET shows an almost Nernstian response to sodium dodecylbenzenesulfonate (NaDBS) ion in the concentration range from 1.0 × 10 −6 to 1.0 ...
Takashi Masadome +4 more
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Anionic Surfactants and Surfactant Ionic Liquids with Quaternary Ammonium Counterions
Langmuir, 2011Small-angle neutron scattering and surface tension have been used to characterize a class of surfactants (SURFs), including surfactant ionic liquids (SAILs). These SURFs and SAILs are based on organic surfactant anions (single-tail dodecyl sulfate, DS, double-chain aerosol-OT, AOT, and the trichain, TC) with substituted quaternary ammonium cations ...
Brown, P +7 more
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Micelar Flocculation of Anionic Surfactants
Langmuir, 1998Cations such as Ca2+ or La3+ show a strong tendency to bind themselves to the surface of anionic surfactant micelles. If the cation concentration is raised until micelles are saturated, the excess cations may precipitate with the surfactant monomer if the solubility product is reached. This paper describes the lauryl sulfate (DS)−Al3+ system.
F. I. Talens, P. Patón, S. Gaya
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Tenside Surfactants Detergents, 2009
Abstract The influence of chain length on the composition of mixed micelles in binary mixtures of N,N-dimethyldodecylamine oxide (DDAO) and sodium decyl-, sodium dodecyl- and sodium tetradecylsulfate (abbreviated as SDeS, SDS and STS, respectively) has been determined at 30°C.
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Abstract The influence of chain length on the composition of mixed micelles in binary mixtures of N,N-dimethyldodecylamine oxide (DDAO) and sodium decyl-, sodium dodecyl- and sodium tetradecylsulfate (abbreviated as SDeS, SDS and STS, respectively) has been determined at 30°C.
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2013
Disclosed herein are methods for the detection and/or quantification of anionic surfactants. Also disclosed herein are test kits, which utilize the disclosed methods, to estimate the anionic surfactant concentration in samples, such as environmentally-derived samples.
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Disclosed herein are methods for the detection and/or quantification of anionic surfactants. Also disclosed herein are test kits, which utilize the disclosed methods, to estimate the anionic surfactant concentration in samples, such as environmentally-derived samples.
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Anionic Surfactants—An Introduction
2019This chapter introduces the class of chemical compounds collectively known as anionic surfactants, the members of that class that have achieved major importance, and, as far as it affects the analyst, the raw materials, processes, and by-products that may be found. Surfactants are by necessity large molecules with molar masses usually in excess of 300.
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