Sodium octyl sulfate

The aggregation numbers of alcohol sulfates can be as low as 20 for sodium octyl sulfate in water solution but usually range from 60 to 150 for higher alcohol sulfates. 

High Performance Liquid Chromatographic (HPLC) Analysis. A Waters HPLC system (two Waters 501 pumps, automated gradient controller, 712 WISP, and 745 Data module) with a Shimadzu RF-535 fluorescence detector or a Waters 484 UV detector, and a 0.5 pm filter and a Rainin 30 x 4.6 mm Spheri-5 RP-18 guard column followed by a Waters 30 x 3.9 cm (10 pm particle size) p-Bondapak C18 column was used. The mobile phase consisted of a 45% aqueous solution (composed of 0.25% triethylamine, 0.9% phosphoric acid, and 0.01% sodium octyl sulfate) and 55% methanol for prazosin analysis or 40% aqueous solution and 60% methanol for naltrexone. The flow rate was 1.0 mL/min. Prazosin was measured by a fluorescence detector at 384 nm after excitation at 340 nm (8) and in vitro release samples of naltrexone were analyzed by UV detection at 254 nm. 

S.D. Christian, E.E. Tucker and E.H. Lane, Precise vapor-pressure measurements of the solubilization of cyclohexane by sodium octyl sulfate and sodium octyl sulfate micelles, J. Colloid Interface Sci. 84 (1981) 423-432. 

Sodium octyl sulfate -I- H3O+ Sodium decyl sulfate + OH Sodium decyl sulfate -t- H2O... 

The adsorption of binary mixtures of anionic surfactants of a homologous series (sodium octyl sulfate and sodium dodecyl sulfate) on alpha aluminum oxide was measured. A thermodynamic model was developed to describe ideal mixed admicelle (adsorbed surfactant bilayer) formation, for concentrations between the critical admicelle concentration and the critical micelle concentration. Specific... 

Figure 13.1 Analysis of catecholamines in urine (reproduced with permission of Bioanalytical Systems). Conditions stationary phase, octylsilane mobile phase, citrate-phosphate buffer (pH 4) containing 7% methanol and SOrngl" sodium octyl sulfate electrochemical detector, +700 mV for sample preparation see R.M. Riggin et a ., Anal. Chem., 49, 2109 (1977). Peaks (with concentrations in urine) 1 = norepinephrine (160ngml ) 2 = epinenphrine (31ngml ) 3 = dopamine (202ngmr ) IS —3,4-dihydroxybenzylamine (internal standard).

As already mentioned, if the van der Waals force (or other attractive force) is not predominant, first a dimple forms in the thinning liquid films. Usually the dimple exists for a short period of time initially it grows, but as a result of the swift outflow of liquid it decreases and eventually disappears. The resulting plane-parallel film thins at almost constant radius R. When the electrostatic repulsion is strong, a thicker primary film forms (see point 1 in Figure 5.13). From the viewpoint of conventional DLVO theory, this film must be metastable. Indeed, the experiments with microscopic foam films, stabilized with sodium octyl sulfate or sodium dodecyl sulfate in the presence of different amount of electrolyte, show that a black spot may suddenly form and a transition to... 

Sodium Octyl Sulfate Powder. [Henkel/ Emeiy/Cospha] Sodium octyl sulfate wetting agent for cleanii prods., reprographic coating badis, elecir(0>lat-iag. 

Sodium octyl sulfate 3429, 3480 Sodium soap of disproportationed rosin 3502... 

Sodium nitroprusside (SNP), hydrocortisone 21-hemisuccinate, desipra-mine hydrochloride, L-arginine hydrochloride, and w-conotoxin GVIA were purchased from Sigma Chemical Company (St. Louis, MO). Acid-washed alumina, sodium octyl sulfate, and catecholamine standards were purchased... 

Figure 5-40. Hair fibers treated in the laboratory with alternating treatments of sodium octyl sulfate and stearalkonium chloride. Top SEM illustrating dry state effects. Note the scale disruption and the large deposits. Bottom Light micrograph illustrating the wet state disruption. Compare to controls illustrated in Figure 5-37.

Octyl sodium sulfate. See Sodium octyl sulfate... 

D-Sorbitol y-Sorbitol Sorbo Sorbol. See Sorbitol Sorghum gum. See Starch SOS. See Sodium octyl sulfate Southern bentonite. See Bentonite Soyaallqrlamine Soya amine. See Soyamine Soyabean acid. See Soy acid Soyabean meal. See Soybean (Glycine soja) meal Soya bean oil. See Soybean (Glycine soja) oil... 

Sulfuric acid, monooctyl ester, sodium salt See Sodium octyl sulfate Sulfuric acid, monotetradecyl ester, sodium salt Sulhirk acid, myristyl ester, sodium salt See Sodium myristyl sulfate Sulfuric ether. See Ethyl ether Sulphadione. See 4,4 -Diaminodiphenyi suifone Sulphuric acid. See Sulfuric acid Sumac wax. See Japan (Rhus succedanea) wax... 

Rhodapex CO-436 Rhodapon UB/E-30 Rhodapon UB/E-N SECOSOL DOS 70 Sodium C14-16 olelln sulfonate, Sodium dllsopropyl naphthalene sulfonate Sodium dodecylbenzenesulfo-nate Sodium dodecyl diphenyloxide disulfonate Sodium lignosulfonate. Sodium methyinaphthalenesulfonate. Sodium myristyl sulfate Sodium nonoxynol-4 sulfate Sodium octyl sulfate Sodium a olefin sulfonate Strodex MRK-98 Surfonic N-80 Sutfynol EP-810 Sutfynol EP-830 T-Det N-407 T-Det N-507 Terlc N8 Terlc Nil Texapon Z 95 P Trldeceth-40, Trioctyl phosphate Triton X-15 Triton X-35 Triton X-165-70% Triton X-301 Undeceth-8 emulsifier, emulsion polymerization acrylates... 

Ablusol OS40. See Sodium octyl sulfate Ablusol SEP40. See Sodium polyacrylate Abluter BE, Abluter CPB. See Cocamidopropyl betaine... 

Avirol SA 4108. See Sodium octyl sulfate Avirol SA 4110. See Sodium decyl sulfate... 

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