Linear alkyl benzenesulfonate

Alkyl ether sulfates with chain lengths ranging from to Cw are quantitatively the most important products currently based on fatty alcohols. It is estimated, that about 20 % of all surfactant alcohols -about 40 % of all fatty alcohols in the coconut range (C,2 Ci,) - are used in the form of alkyl ether suirateg ( ). Alkyl ether sulfates are the most important group of anionic surfactants after linear alkyl-benzenesulfonate (LAS) (2). 

Cassani, G., M. Lazzarin, G. Nucci, and L. Cavalli. 1996. Biodegradation kinetics of linear alkyl-benzenesulfonates (LAS) and alcohol ethoxylates (AE). Poster Presentation. SETAC 1996, Washington. 

Hand, V.C., and G. K. Williams. 1987. Structure-activity relationships for sorption of linear alkyl-benzenesulfonates. Environ. Sci. Technol. 21, 370-373. 

Takada, H.K. Mutoh, N. Tomita, T. Miyadzu, and N. Ogura. 1994. Rapid removal of linear alkyl-benzenesulfonates (LAS) by attached biofilm in an urban shallow stream. Water. Res. 28, 1953-1960. 

Farre, M., J. Ramon, R. Galve, et al. 2006. Evaluation of a newly developed enzyme-linked immunosorbent assay for determination of linear alkyl benzenesulfonates in wastewater treatment plants. Environ. Sci. Technol. 40 5064—5070. 

DiCorcia, A., L. Capuani, F. Casassa, et al. 1999. Fate of linear alkyl benzenesulfonates, coproducts, and their metabolites in sewage treatment plants and in receiving river waters. Environ. Sci. Technol. 33 4119—4125. 

DiCorcia, A., Casassa, F., Crescenzi, C., Marcomini, A., and Samperi, R., Investigation of the fate of linear alkyl benzenesulfonates and coproducts in a laboratory biodegradation test by using liquid chromatography/mass spectrometry. Environ. Sci. Technol, 33, 4112-4118, 1999. 

N1 RN - BENZENESULFONIC ACID, linear ALKYL-. SODIUM SALT - 66411-30-3... 

Consequently, modem products feature linear alkyl derivatives, such as sodium 4-(5-dodecyl)benzenesulfonate and its positional isomers. A typical formulation contains about 15% of surfactant. The bulk is made up of water softeners, such as Na2C03, which causes Mg and Ca to precipitate as their carbonates, or sodium triphosphate, which sequesters these ions by tight multiple binding. 

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