Sodium 2-dodecylbenzene sulfonate

The surfactant most commonly used is the anionic detergent sodium lauryl sulfate. Other surfactants that have been used include sodium dodecylbenzene sulfonate [25155-30-0] sodium A/-lauroyl sarcosinate or Gardol [137-16-6] and sodium cocomonoglyceride sulfonate [3694-90-4]. Cationic and nonionic surfactants are not used for several reasons, including incompatibiUty with the abrasive system and lack of high foaming capabiUty. 

Microbes could not break down branch-chain detergents, so they left foam in river water. They were replaced by straight-chain alkyl benzene sulfonates, such as sodium dodecylbenzene-sulfonate and sodium xylenesulfonate. 

Sodium dodecylsulfonate Sodium dodecylbenzene-sulfonate Cationic... 

From an analytical point of view, the use of anionic surfactants as enhancers of CL reactions is most limited. One of the most recent examples is the use of sodium dodecylbenzene sulfonate (SDBS) as a CL enhancer of the system Ru(hpy) - SO - KBr03 (bpy = 2,2 -bipyridyl) [60], The authors of this work propose the following mechanism for the chemiluminescent system ... 

The general procedure for dispersion involves use of sonication, which causes an unzipping mechanism of dispersion as proposed by Smalley and co-workers [51]. Typical surfactants used for this purpose are sodium dodecylsulfate (SDS) or sodium dodecylbenzene sulfonate (SDBS). The latter shows a stronger interaction as a result of the presence of the aromatic ring. It also appears that longer and more branched hydrocarbon chains interact more efficiently [52],... 

Table 3.4 summarizes similar data, but also includes the sodium dodecylbenzene sulfonate type and the resultant effect on the specific surface area and computed spacing factor of the bubbles [14],... 

RAW MATERIAL Cal soft L-40 CHEMICAL DESCRIPTION Sodium dodecylbenzene sulfonate SOURCE Pi 1 ot... 

Lindstrand et al. (2000) investigated the effect of different organic fou-lants, such as octanoic acid, sodium octonate, and sodium dodecylbenzene sulfonate, on anionic and cationic membranes by monitoring the increase in the membrane resistance (Rm) with time. 

Sodium dodecylbenzene Sulfonate, such as Nacconol 90G (Stephan Co., Northfield, IL)... 

Weiss, E., Groenen-Serrano, K. and Savall, A. (2006), Electrochemical degradation of sodium dodecylbenzene sulfonate on boron doped diamond and lead dioxide anodes. J. New Mater. Electrochem. Sys., 9(3) 249-256. 

There are many different schemes in the manufacture of ABS. Most of the schemes are variations of the one shown in Fig. 2-3 for the production of sodium dodecylbenzene sulfonate. A brief description of the process is as follows ... 

Qualitative flow diagram for the manufacture of sodium dodecylbenzene sulfonate. 

List all the areas in the sodium dodecylbenzene sulfonate process described in Chap. 

Provide a design for handling the spent acid which is removed from the settler after the sulfonation process in the sodium dodecylbenzene sulfonate process described in Chap. 2. The final waste effluent must meet the waste-disposal standards of EPA. 

Develop a complete plant layout for the sodium dodecylbenzene sulfonate plant that is described in Chap. 2. Indicate location of instruments, control valves, and panel boards. Provide possibilities for future expansion or revision of the plant. 

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