Ethoxy lated surfactant

Ethylene oxide is an important intermediate chemical not only for the production of nonionic surfactants like fatty alcohol ethoxylates, alkylphenol ethoxy lates, or propylene oxide/ethylene oxide block copolymers, but also for manufacturing of anionic surfactants like alcohol ether sulfates. 

More recent publications on sulfosuccinates have confirmed the minimal or close to zero skin and eye irritation caused by these products. In a general screening of product safety evaluation methods the authors [16] rejected the sulfosuccinate from further consideration in the statistical analysis of experimental data (variance analysis) because the product had not shown any irritation in the Duhring-Chamber test. The sulfosuccinate (based on fatty alcohol ethoxy late) was tested in a screening with 14 other surfactants, namely, alkyl sulfates, sulfonates, ether sulfates, and a protein fatty acid condensation product. 

B. Gall. Use of sacrificial agents to reduce carboxymethylated ethoxy-lated surfactant loss during chemical flooding Topical report. US DOE Fossil Energy Rep, 1989. 

SEC-RI/UV has also been used to analyse some 26 thioorganotin compounds, organotin carboxylates and chlorides, essentially PVC stabilisers, and some of their main by-products and related compounds (thioesters and dithioesters, n-alkanes) [803]. Not all organotin chlorides were stable in the adopted analysis conditions. N, Ai -ethylene-bis-stearamide and -oleamide in common plastics (ABS, SAN, PUR, LDPE, PA6.6) can be analysed by SEC after derivatisation with trifluo-roacetic anhydride. SEC analysis of fatty alcohol ethoxy-lates (FAE), used as nonionic surfactants, has also been described [759]. 

Talmage S (1994) Environmental and human safety of major surfactants alcohol ethoxy-lates and alkylphenol ethoxylates. Lewis Publishers, Ann Arbor, MI... 

Analogous gel matrices of liquid crystalline lamellar phases can also be formed with nonionie mesogens, such as the combination of cetyl/stearyl alcohol and ethoxy-lated fatty alcohol, provided that the hydrophilic and lipophilic properties of the surfactant molecules are more or less balanced to favor the formation of lamellar structures. 

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. 

Alkyl ethoxy lated surfactants Anion exchange resin — — Surfactants eluted from anion exchange resin with ethanolic — [650]... 

Destaillats H, Hung H-M, Hoffmann MR. Degradation of alkylphenol ethoxy late surfactants in water with ultrasonic irradiation. Environ Sci Technol 2000 34 311-317. 

Polymeric alkyl phenol ethoxy-lates Silicone polymeric surfactants Polyester surfactants... 

Figure 3.26 Schematic phase diagram of a ternary system consisting of water, oil and ethoxy-lated non-ionic surfactant.

Cedepal CO. [Stq>an Canada] Ethoxy-lated nonyl phenyl ethers emulsifier, detergent dispersant surfactant stabilizer, intermediate. 

Hoe S. (Hoechst Cdanese/Colwants Surf.] Quateinaries, alcohol ethoxy lates/piqmxylates, EO/PO block co polymers, other surfactants f[Pg.173]

Kessco PEG Series. [Stepan] Ethoxy-lated esters nonionic surfactants for cosmetics, pharmaceuticals, food, agric., plastics as thickeners, solubilizers, emollients, opacifiers, spreading agents, wetting agents, dispersants. 

Rewodenn . [Rewo GmbH] Ethoxy-lated glyceryl esters or sulfosucdnates emulsifier, mild surfactant, thickener, superfatting agent, solubili for cosmetics. 

Surfactant AR150. Hercules] Ethoxy-lated rosin ester emulsifier, low foaming dettrgent for food industry. 

T>9. (Haicros WemerG. Smith] Ethoxy-lated tallate low foam surfactant... 

Several LC-MS methods using an ESI interface have been published for the analysis of APEO and AEO. The formation of crown ether-type complexes between the ethoxy late chain and cations like NH4 or Na leads to efficient ion formation of the APEO and AEO surfactants during the electrospray process. By use of a C-18 HPLC column NPEO and AEO are separated according... 

Ross Emulsifier. [Ross Chem.] Ethoxy-lates low foaming surfactant, emulsifier. 

The most persistent nonionic surfactants are based on alkylphenol ethoxy-lates. These ethoxylates are only moderately accumulated by marine fauna. The bio concentration factors in common mussels Mytilus edulis) decreased from 350 to 50 from nonylphenol to nonylphenol tri-ethoxylate [150]. 

It is generally known that aqueous solutions of true amphoterics can be difficult to thicken. Viscosity control is best achieved by using either the amphoteric salts or by combining with anionic surfactants. The traditional thickening aids, the alkanolamides, are not particularly effective with amphoterics. Nonionic surfactants offer the best thickening support for amphoteric surfactants, especially those based on fatty acids or alcohols ethoxy-lated with 50-200 moles of ethylene oxide, but like all nonionics, they could exert a foam depressing effect if used at a higher level. When amphoteric surfactants are combined with anionic surfactants, the traditional alkanolamides are effective. The final pH adjustment can also make a difference to the viscosity of the product. 

Alcohol ethoxylates (C6-C18) Ethoxylates Synonyms ethoxylated alcohol, fatty alcohol ethoxy-late, alcohol ethoxylate, polyoxyethylene alcohol ether, polyethylene glycol alcohol ether. Surfactant alcohol ethoxylates and their derivatives are used by the detergent manufacturing industry as active ingredients in industrial and consumer products such as soaps, detergents, and other cleaning products. 

Emulsion polymerizations of vinyl acetate in the presence of ethylene oxide-or propylene oxide-based surfactants and protective colloids also are characterized by the formation of graft copolymers of vinyl acetate on these materials. This was also observed in mixed systems of hydroxyethyl cellulose and nonylphenol ethoxy-lates. The oxyethylene chain groups supply the specific site of transfer (113). The concentration of insoluble (grafted) polymer decreases with increase in surfactant ratio, and Rp (max) is observed at an ethoxylation degree of 8 (114). 

Nonionic surfactant a surfactant in which the hydrophilic part is uncharged. Examples acyl diethanolamides, RC0N(C2H40H)2 ethoxy-lated fatty alcohols, R(OC2H4) OH. 

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