By Thomas M. Schmitt
Within the culture of the preferred first version, research of Surfactants, moment variation deals a entire and useful account of study equipment for picking out and realizing commercially very important surfactants-individually and in compounds. Combining a whole evaluation of the literature with quite a few review systems and the requisites for advertisement items, this helpful reference explores the most important levels and most up-to-date advancements for surfactant purposes. This variation has been completely improved and lines new sections on capillary electrophoresis, ether carboxylates, and ester quats. it's also extra globally obtainable with overseas language citations and SI units.Containing over 2400 references, drawings, tables, and equations, research of Surfactants, moment variation is an steered reference for actual, floor, colloid, and oil chemists; analytical, learn, and caliber insurance chemists operating within the cleaning soap and detergent, prescription drugs, and beauty industries; regulatory and nutrition scientists; and upper-level undergraduate and graduate scholars in those disciplines.
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Additional info for Analysis of Surfactants (Surfactant Science Series)
Alkyl Chain Distribution The determination of alkyl chain distribution of alcohol ether sulfates can be most easily performed by gas chromatography after cleavage of the sulfated ethoxy moiety with hydriodic acid. This procedure is similar to that described under the analysis of ethoxylated nonionic surfactants. The alkyl iodides from cleavage may also be determined by HPLC (72). An alternative approach requires the decomposition of the sulfate and ethoxy groups with the mixed anhydrides of paratoluenesulfonic and acetic acid, followed by GC determination of the alcohol acetates (73).
Disulfonated Alkylbenzenes Miiller and Noffz report that the monosulfonate may be quantitatively extracted from hydrochloric acid solution with ethyl ether, with a subsequent extraction of disulfonate from the same aqueous solution with isoamyl alcohol (27). 4. Indane and Tetralin Sulfonates S03" Na+ Dialkyltetralin sulfonate Characterization of Anionic Surfactants 25 S03' Na+ Dialkylindanesulfonate Linear alkylbenzene produced from chloroparaffins contains 6-8% dialkyltetralin and dialkylindane.
This analysis is discussed with the characterization of nonionic surfactants (Chapter 2). D. a-Olefin Sulfonates Olefin sulfonates are analyzed in the same general manner as other anionics. For certain purposes it may be necessary to determine the relative proportions of the main components: the alkenesulfonates and hydroxyalkanesulfonates. The concentration of residual sultones, especially unsaturated sultones caused by interaction of alkenesulfonate with bleach, is carefully controlled. Other low level impurities are disulfonated and dialkyl compounds.