scholarly journals Polycation–Sodium Lauryl Ether Sulfate-Type Surfactant Complexes: Influence of Ethylene Oxide Length

2015 ◽  
Vol 119 (20) ◽  
pp. 6338-6347 ◽  
Author(s):  
Leo F. W. Vleugels ◽  
Jennifer Pollet ◽  
Remco Tuinier
Keyword(s):  
Ethylene Oxide ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether

scholarly journals Toluidine blue-sodium lauryl ether sulfate complexes: Influence of ethylene oxide length

2017 ◽  
Vol 141 ◽  
pp. 420-427 ◽  
Author(s):  
Leo F.W. Vleugels ◽  
Aurélie Féat ◽  
Ilja K. Voets ◽  
Remco Tuinier
Keyword(s):  
Ethylene Oxide ◽  
Toluidine Blue ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether ◽  
Sulfate Complexes

Adsorption of Sodium Lauryl Ether Sulfate on Liposomes by Means of a Fluorescent Probe:  Effect of the Ethylene Oxide Groups

Langmuir ◽  
2002 ◽  
Vol 18 (21) ◽  
pp. 8250-8254 ◽  
Author(s):  
M. Cócera ◽  
O. López ◽  
J. Estelrich ◽  
J. L. Parra ◽  
A. de la Maza
Keyword(s):  
Ethylene Oxide ◽  
Fluorescent Probe ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether

scholarly journals Partitioning of Selected Anisole and Veratrole Derivatives between Water and Anionic Surfactant Micelles

Molecules ◽  
2020 ◽  
Vol 25 (24) ◽  
pp. 5818
Author(s):  
Andrzej Lewandowski ◽  
Katarzyna Szymczyk
Keyword(s):  
Molecular Structures ◽  
Head Group ◽  
Lauryl Sulfate ◽  
Micellar Solubilization ◽  
Surfactant Micelles ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Water Partition Coefficient ◽  
Lauryl Ether ◽  
Derivatives Of

The UV absorption spectra of six structurally related derivatives of anisole and veratrole, i.e., anisaldehyde, (E)-anethole, estragole, veratraldehyde, methyleugenol and (E)-methylisoeugenol, were recorded at various concentrations of the anionic surfactants, either sodium lauryl sulfate (SLS) or sodium lauryl ether sulfate (SLES) at T = 298 K. In addition, conductivity and density measurements were made for the SLS and SLES solutions to determine the volumetric properties of the studied surfactants. Next, using the W. Al-Soufi, L. Pińeiro and M. Novo model (APN model) including the pseudo-phase model for micellar solubilization, the values of micelle-water partition coefficients for each perfume-surfactant system were determined. In addition, the relations between the molecular structures of the solute and the head group of the surfactant and the value of the micelle-water partition coefficient as well as the octanol-water one were discussed.

Environmental and energetic effects of cleaner production scenarios on the Sodium Lauryl Ether Sulfate production chain

2019 ◽  
Vol 240 ◽  
pp. 118203
Author(s):  
Alex R. Nogueira ◽  
Maria da Graça C.B. Popi ◽  
Claudia Cristina Sanchez Moore ◽  
Luiz Kulay
Keyword(s):  
Cleaner Production ◽  
Production Chain ◽  
Sulfate Production ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether

scholarly journals Near infrared absorption spectroscopy for the quantification of unsulfated alcohol in sodium lauryl ether sulfate

2020 ◽  
pp. 096703352096382
Author(s):  
SE Cunliffe ◽  
PA Martin ◽  
MR Baker ◽  
O Mihailova ◽  
PJ Martin
Keyword(s):  
Gas Chromatography ◽  
Least Squares ◽  
Partial Least Squares ◽  
Absorption Spectroscopy ◽  
Near Infrared ◽  
External Validation ◽  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether ◽  
Nir Absorption

Compositional variations in the surfactants used to produce personal care products result in significant challenges during large scale manufacturing, for example errors in product viscosity. Characterisation of the surfactant can be completed using chromatographic techniques however these are time consuming and impractical during real-time manufacturing. Near infrared (NIR) absorption spectroscopy with a fibre-optic coupled transmission probe is proposed as an in-line method of determining the levels of unsulfated alcohol in sodium lauryl ether sulfate (SLES). NIR absorption spectra in the region of 4000 – 12000 cm−1 were collected for a range of supplier samples at three temperatures. Gas chromatography - mass spectrometry was used as a reference technique to quantify samples of SLES and quantitative chemometric data analysis was used to produce partial least squares (PLS) calibration models for the prediction of surfactant composition. PLS regression was performed on the data in the spectral regions between 7509 – 5334 cm−1 using a range of data pre-processing techniques to identify the best model. Models were evaluated using root mean square error of cross validation (RMSECV) and residual predictive deviation (RPD) as the primary indicator of model accuracy and robustness. A partial least squares regression model using a generalised least squares weighting data pre-processing approach was found to be the most robust in regards to sample non-homogeneity and temperature, producing a model with an RMSECV = 0.094 w/w% and RPD = 4.03. The model successfully predicted the unsulfated alcohol mass percentage in an external validation of unknown samples with alcohol levels within the model limits of 0.7–2.2 w/w%. Spectra acquired at a resolution of 8 cm−1 with 32 scans take just 16 seconds to obtain, proving that NIR spectroscopy can successfully be applied as an alternative analytical method to gas chromatography for the determination of low level impurities in viscous surfactant systems.

scholarly journals Sodium lauryl ether sulfate (SLES) degradation by nitrate-reducing bacteria

2017 ◽  
Vol 101 (12) ◽  
pp. 5163-5173 ◽  
Author(s):  
Ana M. S. Paulo ◽  
Rozelin Aydin ◽  
Mauricio R. Dimitrov ◽  
Harm Vreeling ◽  
Ana J. Cavaleiro ◽  
...  
Keyword(s):  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether ◽  
Reducing Bacteria ◽  
Nitrate Reducing Bacteria

Anti-fog chitosan/sodium lauryl ether sulfate films

2013 ◽  
Vol 70 (12) ◽  
pp. 3305-3316 ◽  
Author(s):  
Manuela Florea-Spiroiu ◽  
Diana Achimescu ◽  
Ioana Stanculescu ◽  
Munizer Purica ◽  
Raluca Gavrila ◽  
...  
Keyword(s):  
Sodium Lauryl Ether Sulfate ◽  
Ether Sulfate ◽  
Lauryl Ether
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