Surfactants sodium lauryl ether sulfate

Standapol ES-3 Anionic surfactant. Sodium lauryl ether sulfate (30%) Stepan... 

FIG. 3 Lime soap dispersing power of some alkyl ether carboxylates compared to other surfactants (DIN 53903). AEC, alkyl ether carboxylate AMEC, amidether carboxylate CAPB, cocamidoproplylbetaine OEC, oleyl ether carboxylate SLES, sodium lauryl ether sulfate. % surfactant soap = % surfactant calculated on the soap needed to disperse the lime soap. (From Refs. 61 and 64.)... 

DLSS, DPMS, DSIS, and a blend containing SLAS and DCAD are the components to improve the formulations skin mildness, i.e., the skin compatibility of the other surfactants present. SLES/ALAS/SLAS, i.e., sodium lauryl ether sulfate, ammonium lauryl sulfate, sodium lauryl sulfate, are examples of high-foaming basic surfactants. 

Sulfosuccinates are not only less irritating to skin and mucus membranes than other surfactants, but it was also found that they reduce skin irritation of other surfactants used in skin and hair care products. In particular, the effect on sodium lauryl ether sulfate was found to be most pronounced [103]. Figure 14 shows the mollifying effect of disodium oleic acid monoethanol amide sulfo-succinate when blended with anionic surfactant at a total concentration of 15%. 

Surfactants anionics sodium lauryl ether sulfate (SLES) and sodium lauryl sulfate (SLS) amphoteric cocamidopropyl betaine (CAPB) nonionic alkyl polyglucoside (APG). 

These synergistic effects play an important role with regard to the use of betaines and amphoteric surfactants in dermatologically compatible formulations. Results from the Draizetest (determination of the irritation capacity in the rabbit eye) clearly show the synergistic effect of sodium lauryl ether sulfate/betaine with respect to mucous membrane compatibility. The initial level of the dermatological irritation potential of the disodium cocoamphodiacetate is lower than that of the betaine. Depending on the ratio of alkyl ether sulfate/amphoteric surfactant or alkyl ether sulfate/betaine combinations, a minimum in the irritation potential can be achieved. 

In Europe, sodium lauryl ether sulfate is the most commonly used primary surfactant. In the USA, a-olelin sulfonates will be preferred, with sulfosuccinates, which are very mild but more... 

Cocamidopropyl betaine (CAPB) is a common secondary surfactant in shampoo formnlations. It improves mildness and viscosity, and enhances the foam properties. It is milder on the skin than linear alkylbenzene sulfonate (LAS), so adding it to the mix reduces the amount of the harsher detergents needed. It is thicker than the other ingredients, so it can be added to make the mix have the right viscosity. It also has antistatic and moisturizing properties. In many shampoos, CAPB is used in combination with sodium lauryl ether sulfate (LES) (Table 6.10). 

Shampoo compositions generally comprise one or more anionic cleansing surfactants, which are cosmetically acceptable and suitable for topical application to hair. Anionic surfactants (negatively charged molecules) provide a lot of lather and detergency in the shampoo. The most commonly used anionic surfactants are sodium lauryl ether sulfate (SLES), ammonium lauryl sulfate (ALS), and ammonium lauryl ether sulfate (ALES), and sodium lauryl sulfate is also occasionally used. 

Coco/oleic fatty acid Monoethanolamine Cocamide diethanolamine Anionic surfactants mixtme (Sodium lauryl sulfate, sodium lauryl ether sulfate and betaine) PCMX... 

Sodium lauryl ether sulfate and ammonium lauryl ether sulfate are common analogues that are also used regularly as an alternative, the former having less health consequences. These compounds are prepared by the addition of ethylene oxide and are also structurally related compounds found in many beauty products of a lower pH and have a higher compatibility with other surfactants. 

Anionic surfactants are the primary ingredient in many types of cleaning products, including heavy-duty laundry detergents. Examples of these surfactants are sodium lauryl ether sulfate (SEES), sodium dodecyl benzene sulfonate... 

ATR-FTIR is a useful analytical tool for multicomponent analysis that employs a mathematical data-treatment process. Also, Carolei and Gutz (2005) have used this technique combined with chemometrics, to determine three surfactants and water simultaneously in shampoo and in liquid soap without either sample dilution or pretreatment. The surfactants analysed were an amphoteric one (cocoamidopropyl betaine), two nonionic ones (coco diethanolamide in shampoo and alkylpolyglucoside in liquid soap), (minor components) and an anionic one (sodium lauryl ether sulfate). Overlapping bands and water absorption were resolved by two multivariate quantification methods classical least squares (CLS) and inverse least squares (ILS) (Massart et al., 1997, 1998). The wave numbers chosen for the calculation process were preferably those of maximum absorption of the minor components. This method can be applied during the production process but not in final product analysis because of interference caused by the fragrance added in the last step (Figure 7.1.2). 

Chem. Analysis 1% max. sodium sulfate 0.3% max, sodium chloride Uses Surfactant for liq. detergents, shampoos, bubble baths Features Can be used in place of sodium lauryl ether sulfate Properties Gardner 4 max. limpid liq. sol. in water and ethanol f.p. 0 C acid no. 180 pH (10%aq.)1.6 33% act. 

The most common ingredient in shampoos is also the most common detergent in use in other products a class of surfactants known as straight-chain alkyl benzene sulfonates. Examples are ammonium lauryl sulfate, its sodium relative, and the slightly larger but related molecule ammonium lauryl ether sulfate (sometimes abbreviated as ammonium laureth sulfate). 

Water serves as a base value in this test and sodium lauryl sulfate as a well-known irritating surfactant. Lauryl ether sulfate served as a substance with high sales volume and good skin tolerance. As was to be expected, lauryl ether sulfate scored only slightly better than lauryl sulfate. Sulfosuccinate values obtained were classified under little skin roughening effect. ... 

Initial Batch Reactor Studies. An agitated 2000 ml thick-walled glass reactor was blanketed with nitrogen and operated at 50°C. Vinyl acetate containing about 15 ppm hydroquinone was used without purification. The ionic emulsifier was Sipex EST-30, advertised as a sodium tridecyl ether sulfate, and the nonionic surfactant was Siponic L-25, a lauryl alcohol ethoxy-late. Table I shows the recipes and properties of the three seed latexes produced in the batch reactor. Essentially complete conversions were obtained in 30 to 45 minutes, but with a temperature rise of almost 50°C. 

Surfactants Sodium lauryl sulfate, saponin, polyoxyethylene-9-lauryl ether, polyoxyethylene-20-lauryl ether, alkylmaltosides such as tetradecylmaltoside, dodecylmaltoside, and decylmaltoside Membrane disruption... 

Surfactants Sodium lauryl sulfate Polyoxyethylene oxide-9 ethers Solubilization of proteins/peptides Perturbation of membrane layers Extraction of membrane proteins and lipids... 

Uses Surfactant in cosmetics Sodium laureth-7 sulfate CAS 9004-82-4 (generic) 66197-75-9 EINECS/ELINCS 221-416-0 Synonyms PEG-7 lauryl ether sulfate, sodium salt Sodium POE (7) lauryl ether sulfate Definition Sodium salt of the sulfate ester of the PEG ether of lauryl alcohol Empirical C26H54O11S Na... 

Anionic surfactants (primary and mild surfactants) Na or Mg or NH4 lauryl ether sulfate (LES), Na or Mg cetyl ether sulfate, sodium sulfosuccinate... 

MACKAMIDE MC being a "superamide" is not soluble in water by itself below 10%. However, the addition of small amounts of anionic surfactants such as lauryl sulfate, lauryl ether sulfate, linear alkane sulfonate and even soap will clarify it. MACKAMIDE MC will respond to viscosity control with the addition of sodium or ammonium chloride. 

A variety of additives are incorporated into the dispersions as surfactants (Tween 80, sodium lauryl sulfate, polyoxyethylene nonyl phenyl ether, cetyl alcohol, and Pluronic F-68), plasticizers (dibutyl sebacate, oleic acid, and Myvacet 9-40), pigments, antiadherents (fumed silica), anticoagulant (Myvacet 9-40), preservatives (sorbic acid), and stabilizers (ammonia). ... 

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