Quantitative determination of sodium cetyl sulphate in its solution in water

Edwards, Gareth; Ewers, WE; Mansfield, W. W.

doi:10.1039/an9527700205

Cited by 11 publications

(3 citation statements)

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“…by dissolving 1.0 gram in distilled water and diluting to 1 liter. This stock solution should be made up every 4 weeks. Prepare an intermediate solution, which should be made up at least every 2 weeks by diluting 100 ml.…”

Section: Methodsmentioning

confidence: 99%

Determination of Anionic Detergents in Surface Waters and Sewage with Methyl Green

Moore¹,

Kolbeson²

1956

Anal. Chem.

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The less steep gradient could come from greater backmixing of the liquid or from channeling (radial velocity variations). The absence of any large effect of misalignment on the concentration drop at the feed inlet suggests that channeling in lower regions is the greater effect. This corresponds to the visual observations of channeling when KMn04 solution was added. CONCLUSIONSVertical misalignment of foam and bubble fractionation columns can strongly affect their performance, even for slight departures from the true vertical. The sensitivity to misalignment is probably affected by flow rates, bubble diameters, and length-to-diameter ratio of the column. These factors were not investigated explicitly. It would appear that a number of cases of nonreproducibility of bubble-column performances can be explained by slight departures from true vertical alignment of the contactor. Deckwer et al. (1973) reported experimentally derived backmixing coefficients for bubble columns, which varied abruptly at a certain point in the column. It may be that this phenomenon is also associated with effects of slight departures of the column from the vertical.

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Section: Methodsmentioning

confidence: 99%

Determination of Anionic Detergents in Surface Waters and Sewage with Methyl Green

Moore¹,

Kolbeson²

1956

Anal. Chem.

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“…Because of insufficient understanding of the underlying phenomenon, however, its generalization for long-chain amine salts, anionic surface active compounds of various kinds, and similar compounds has not been apparent. For long-chain sulfates and sulfonates, an extraction method depending upon complete isolation and colorimetric estimation of a dve-surfactant salt has been suggested (5,8). For most of these methods, however, the precise nature of the interaction of dyes and surfactants of opposite charge has not been properly appreciated.…”

Section: Inmentioning

confidence: 99%

Use of Ionic Dyes in Analysis of Ionic Surfactants and Other Ionic Organic Compounds

Mukerjee¹

1956

Anal. Chem.

127

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“…Conditions for conducting the fusion are described. Edwards et al (38) determined sodium cetyl sulfate by precipitating its methylene blue complex, which is filtered, washed, and redissolved in ethyl alcohol for colorimetric determination. Harple et al (64) applied infrared spectrometry to determine the structure of commercial aluminum soaps, finding a fatty acid band only in soaps containing acids extractable with cold iso-octane.…”

Section: Asphaltmentioning

confidence: 99%

Petroleum

Levin¹

1953

Anal. Chem.

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PETROLEUM HARRY LEVINThe Texas Co., Beacon, 1%' . Y d C A S be seen in the four previous annual reviews and gener-A ally in the field of analytical chemistry, the adaptation of instrumental methods to the solution of various problems continues t o be the major trend in the analytical phase of petroleum technologr. This is apparent again in the following review, which covers the literature for a period of one year from that covered in the previous reviex (98). CRUDE OIL.4n apparatus and procedure for determining water in wateroil emulsions, based on their dielectric constants, were described by Robinson and Ebertz (137). Schuldiner (147) established the source of harbor pollution from the contour and fluorescence of the spots formed in paper chromatography of crude oil and its products. Lockwood et al. (101) assayed crude oil in new e q u i p ment comprising a spinning band column for atmospheric and vacuum distillations, a spinning auger still for molecular distillation, and a n all-glass equilibrium flash vaporization unit. A laboratory recirculating equilibrium still for flash vaporization of petroleum crude oil or its fractions was described by Othnier et al. (120), who evaluated its characteristics at and below atmospheric pressure and temperatures to 357 ' C. 4 5Hall (57) determined dissolved oxygen in petroleum fractions polarographically by measuring the diffusion current at -1.6 volts; the precision was &2 mg. per liter of sample in an elapsed time of 15 minutes. Luft (102) determined the oxygen content of gases by passing them through tubes kept in magnetic fields of different intensities, voltage being proportional t o the oxygen concentration of the sample. Cipriano and Riggs (23) determined oxygen in flue gas from a catalytic cracking unit regenerator, by instrumentation employing the paramagnetic properties of oxygen for the measurement. MeArthur (105) determined low concentrations of oxygen in gases by the change in chromous ion concentration of dilute solutions of chromous chloride through which measured volumes of gas sample were passed. Taylor and .4lexander (16%) compared the results for oxygen in buta-

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Quantitative determination of sodium cetyl sulphate in its solution in water

Cited by 11 publications

References 0 publications

Determination of Anionic Detergents in Surface Waters and Sewage with Methyl Green

Determination of Anionic Detergents in Surface Waters and Sewage with Methyl Green

Use of Ionic Dyes in Analysis of Ionic Surfactants and Other Ionic Organic Compounds

Petroleum

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