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Sodium lauryl ether sulfate

Catalog Number

ACM68585342

CAS

68585-34-2

Structure

IUPAC Name

Disodium;1-dodecoxydodecane;sulfate

Synonyms

Lauryl ether sulfate, sodium salt

Molecular Weight

328.38

Molecular Formula

C12H26Na2O5S

Canonical SMILES

CCCCCCCCCCCCOCCCCCCCCCCCC.[O-]S(=O)(=O)[O-].[Na+].[Na+]

InChI

SMVRDGHCVNAOIN-UHFFFAOYSA-L

InChI Key

InChI=1S/C24H50O.2Na.H2O4S/c1-3-5-7-9-11-13-15-17-19-21-23-25-24-22-20-18-16-14-12-10-8-6-4-2;;;1-5(2,3)4/h3-24H2,1-2H3;;;(H2,1,2,3,4)/q;2*+1;/p-2

Purity

70%

Appearance

white or pale yellow gel-like cream

Application

Cosmetic Raw Materials, Detergent Raw Materials

Storage

Storage in shady room and dry place.

Active Content

70.0%

6.5-9.5

Physical State

Gel

Typical Applications

Dispersing agent; Cleaning agent; Emulsifier; Foam Booster

MSDS

Download MSDS

COA

Download COA

Spec Sheet

Download Spec Sheet

Case Study

Preparation and Controlled Release of Microcapsules Based on Chitosan/Sodium Lauryl Ether Sulfate

Preparation and Controlled Release of Microcapsules Based on Chitosan/Sodium Lauryl Ether Sulfate Budinčić, Jelena Milinković, et al. Carbohydrate Polymers, 2021, 251, 116988.

In cosmetics, vitamin E is relatively unstable and sensitive to high temperature, oxygen and light, and needs to be protected through microencapsulation technology. Using a spray drying method, sodium lauryl ether sulfate (SLES)/chitosan (Ch) composites were developed as microcapsules for encapsulating vitamin E.
Preparation of SLES/Ch encapsulated vitamin E microcapsules
· Microcapsules were prepared by complex coacervation between cationic polyelectrolyte chitosan and oppositely charged anionic surfactant.
· A O/W emulsions were prepared at the oil:water mass ratio 20:80, where the oil phase was enriched with vitamin E (10 % solution in medium-chain triglycerides). These emulsions were stabilized by the mixture of Ch and SLES.
· Then, 2 % aerosil was added to the emulsions, in order to separate agglomerated droplets. Addition of FA and GA in mass ratio 1:1 and 1:2 (Ch:FA, Ch:GA) to some of the emulsions followed homogenization. Cross-linking process was continued for 2 h with slowly stirring.
· Next, the emulsions were spray dried in a Mini Spray Dryer with a standard 0.7 mm nozzle, whereby microcapsules in the form of a powder were obtained.

Properties of Sodium Lauryl Ether Sulfate as A Mechanical Foaming Agent and Its Analytical Methods

Properties of Sodium Lauryl Ether Sulfate as A Mechanical Foaming Agent and Its Analytical Methods Caracciolo, Anna Barra, et al. Environmental Pollution, 2017, 226, 94-103.

· Characteristics of SLES as a foaming agent
(1) Sodium lauryl ether sulfate (SLES) is an anionic surfactant used for soil conditioning in the excavation industry, particularly as a lubricant for mechanized tunnel construction. Foaming agents are typically used in tunnelling excavation between 0.1 and 3 L/m3 of soil.
(2) Soil debris produced during excavation processes and reused can be a hazard for many aquatic species if SLES is not biodegraded.
(3) The biodegradation studies conducted in aerobic conditions and using enrichment cultures showed SLES to be readily biodegradable.
· Analytical methods of ELES in soils
(1) Preliminary extraction and preconcentration phase: soxhlet extraction, microwave-assisted extraction (MAE), accelerated solvent extraction (ASE), pressurized liquid extraction (PLE), and supercritical fluid extraction (SFE), etc.
(2) Analytical determination in the liquid extract: liquid-liquid extraction with the addition of methylene blue active substances MBAS, high-performance liquid chromatography (HPLC) coupled with an ultraviolet (UV) or fluorescence (FL) detector, and more.

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