Fatty alcohol ether sulfates

FIG. 36 Synergistic mixture of alkane- (paraffin) sulfonates (PS) and fatty alcohol ether sulfates (FAES). Cleaning effect in miniplate test at 50°C, tap water (12° German hardness), 0.075 g of active surfactant mixture per liter. 

APG, alkyl polyglucoside FAA, fatty acid alkanolamide FAEO, fatty alcohol ethoxylate FAES, fatty alcohol ether sulfate FAGA, fatty acid glucamide FAS, fatty alcohol sulfate LAS, linear alkylbenzenesulfonate SAS, secondary alkanesulfonate. 

Synthetic fibers washing (Alkylphenol ethoxylates,) fatty alcohol ethoxylates, alkane (olefine)-sulfonates, fatty alcohol (ether) sulfates, end-group-blocked fatty alcohol ethoxylates... 

One of the longest known synthetically prepared surfactants are the fatty alcohol sulfates, which were prepared on technical scale before 1940. Along with their ethoxylated counterparts, the fatty alcohol ether sulfates, which appeared on the stage shortly after, their use in toiletries is very popular but they can also be found in products for textile industry and auxiliaries in emulsion polymerization. With the exception of soaps, the mentioned anionic surfactants all have a sulfur-containing functional group. Denying the differences between these, their skin irritancy potential is remarkably high. 

Zetesol 2056 Fatty alcohol ether sulfate Zschi m... 

The chemicals may constitute a substantial portion of the finished textile. In many cases 10% or more of the fabric s final weight may derive from textile chemicals added to improve or enhance one or another of the fabric s properties. Representative raw materials employed for textile finishing applications are fatty alcohol ether sulfates, vinyl acetate-ethylene copolymers, hydrated alumina, alkylolamides, alkoxylates, chlorinated paraffins, alginates, sodium tripolyphosphates, sorbitan fatty acid esters, ethoxylated triglycerides, and silicones. 

Fatty alcohol ether sulfates Oxo alcohol ether sulfates... 

By far, the greatest apphcation of fatty alcohol is in the manufacture of fatty alcohol sulfate and fatty alcohol ether sulfate. These materials possess good foaming properties and ready biodegradability and are extensively used as base surfactants for laundry detergent products, shampoos, dishwashing liquids, and cleaners. 

Coco-Based Surfactants. The most important coconut oil-based surfactants are fatty alcohol sulfate, fatty alcohol ether sulfate, and fatty alcohol polyglycol ether. Two relatively new coco-based surfactants are fatty acid methyl ester sulfonate and alkyl polyglycoside, which is produced from fatty alcohol and starch or sugar, both renewable materials. 

Fatty Alcohol Ether Sulfates. Probably the most important derivatives of fatty alcohol in the C12-C14 and C12-C16 ranges are the fatty alcohol ether sulfates. They are produced by the sulfation of the fatty alcohol, containing 2-3 moles of ethylene oxide, with sulfur trioxide or chlorosulfonic acid and subsequently neutralized with caustic soda, ammonia, or an alkanolamine. The ether sulfates possess superior properties over the fatty alcohol sulfates. They have unlimited water solubility, are unaffected by water hardness, and possess superior skin compatibility. Accordingly, they are used in liquid shampoos and bath preparations. One characteristic of this material is its ability to increase its viscosity by the addition of an electrolyte such as salt (5). 

In neutralization, other alkali can be used such as ammonia, monoethanolamine, or triethanolamine. The same chemical reaction and equipment applies to the production of fatty alcohol ether sulfate, except that the raw material is fatty alcohol ethoxylate. 

The latest technology in the manufacture of fatty alcohol sulfate or fatty alcohol ether sulfate is the direct use of SO3 gas as the sulfating agent. This process not only produces a high-purity product but is also much more economical and generates minimum waste. 

The analysis of surface-active anions comprises the determination of simple aromatic sulfonic acids, hydrotropes (toluene, cumene, and xylene sulfonates), alkane- and alkene sulfonates, fatty alcohol ether sulfates, alkylbenzene sulfonates, and a-sulfofatty acid methyl esters. Many of these compounds are relevant predominantly in the detergent and cleansing industry. 

Ethoxylation of fatty alcohols prior to their sulfonation leads to a class of compounds called fatty alcohol ether sulfates,... 

H Ci, to C13 Cjo to C)4 Alkyl ether sulfate a) Fatty alcohol ether sulfate b) sec. Alkyl ether sulfate... 

Fatty alcohol ether sulfate Zschim Fatty alcohol ether sulfate Zschim Alkyl polyethylene glycol ether Zschim Alkyl polyethylene glycol ether Zschim... 

POE (1-4) Cl 2-15 fatty alcohol ether sulfated, sodium salt. See Sodium Cl2-15 pareth sulfate... 

Sodium Cl2-15 pareth sulfate Synonyms POE (1-4) Cl 2-15 fatty alcohol ether sulfated, sodium salt Sodium pareth-25 sulfate Sulfuric acid, mono[2-[2-[2-(C12-15 alkyloxy) ethoxy] ethoxy] ethyl] esters, sodium salts... 

Natural C12-C16 fatty alcohols or C10-C15 synthetic fatty alcohols with >4 moles ofEO. Alcohol ethoxylates with 5-11 moles of EO are used in liquid and powdered laundry detergents as coactives with LAS and fatty alcohol ethers sulfate (FAES) in hard surface-cleaning formulations and in a host of industrial applications. Alcohol ethoxylates with 12-50 moles of EO and their respective sulfated and phosphated derivatives find use in emulsion polymerization and other select applications. 

Alkyl Ether Sulfates or Fatty Alcohol Ether Sulfates... 

Depending on their degree of ethoxylation, fatty alcohol ether sulfates are extremely complex mixtures, for which the separation efficiency of a polymer phase is not sufficient. Good separations are obtained with silica-based, chemically bonded reversed phases. The chromatographic conditions have to be adjusted accordingly. The free base ammonium hydroxide cannot be used as the ion-pair reagent because of the pH limitation of modified silica, so suppressor systems cannot be used for subsequent conductivity detection. Sodium acetate has proved to be a suitable ion-pair reagent for nonsuppressed conductivity... 

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