2007
DOI: 10.3139/113.100345
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Dissolution Rate of Sodium Fatty Alcohol Sulfate FAS – Surfactants

Abstract: We represent an applicable problem that arises when long chain surfactant fatty alcohol sulfate FAS is used in washing process. Octadecyl fatty alcohol sulfate C18-FAS is known for its strong washing performance, however it has the disadvantages of high Krafft point and its long dissolution rate. We demonstrate the factors that affect dissolution rates of FAS-surfactants, and how one can vary these factors in order to achieve particular dissolution rate. In this study, we have used a reproducible method for de… Show more

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Cited by 5 publications
(5 citation statements)
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“…On the other hand, the 4.1 × 10 −4 M solution displays low but accurately measurable values of the dynamic viscosity (|Á*| = 0.01 Pa s) and an elastic modulus (G = 12 Pa) 2 order of magnitude larger than the viscous modulus (G = 0.07 Pa), typical of a gel-like system. Dispersions with a visco-elastic behaviour similar to that of the present system have been previously observed for highly concentrated and dehydrated onion-like vesicles [32], for multilamellar vesicles from zwitterionic surfactants/n-alcohols/ionic surfactants mixtures [33] as well as for decyltrimethylammonium hydroxides/2-hydroxy-1-carboxy-naphthoate systems [34]. This gel-like response at high concentration indicates high interactions between close-packed vesicles [35].…”
Section: Resultssupporting
confidence: 64%
“…On the other hand, the 4.1 × 10 −4 M solution displays low but accurately measurable values of the dynamic viscosity (|Á*| = 0.01 Pa s) and an elastic modulus (G = 12 Pa) 2 order of magnitude larger than the viscous modulus (G = 0.07 Pa), typical of a gel-like system. Dispersions with a visco-elastic behaviour similar to that of the present system have been previously observed for highly concentrated and dehydrated onion-like vesicles [32], for multilamellar vesicles from zwitterionic surfactants/n-alcohols/ionic surfactants mixtures [33] as well as for decyltrimethylammonium hydroxides/2-hydroxy-1-carboxy-naphthoate systems [34]. This gel-like response at high concentration indicates high interactions between close-packed vesicles [35].…”
Section: Resultssupporting
confidence: 64%
“…1 gives an illustration of the workflow for developing supervised learning models to predict catalyst performance using simple experimentally obtained features. This workflow, commonly employed by researchers, 39,45,46 underpins the approach taken in this work. The following sections provide more details about each stage of the process.…”
Section: Methodsmentioning
confidence: 99%
“…20 These characteristics make unsupervised learning techniques more valuable in feature selection and dimensionality reduction applications compared to catalyst performance prediction. 37–39 Supervised learning is generally preferred for performance prediction due to its ability to learn from labelled data.…”
Section: Introductionmentioning
confidence: 99%
“…Later, a precipitate-liquid crystal phase was observed followed by a gel phase. [17][18][19][20][21][22][23][24][25] In this article, we report the dispersion behavior of MWCNTs in tetrahydrofuran (THF) solvent in the presence of b-HNA. This investigation describes the preparation of biphasic solution of MWCNTs=THF and MWCNTs= polystyrene in homogenous manner by adsorbing the b-HNA molecules onto the surface of MWCNTs.…”
Section: Introductionmentioning
confidence: 99%
“…[17][18][19][20] Data from the literature indicate that SHNA has novel interactions with cationic surfactants. [20][21][22][23][24] Prior research showed that the addition of SHNA to cetyltrimethylammonium surfactant solutions forms sequential phases from small micelle aggregates, an isotropic gel phase followed by an anisotropic-liquid crystal phase. Later, a precipitate-liquid crystal phase was observed followed by a gel phase.…”
Section: Introductionmentioning
confidence: 99%