Sodium lauryl sulfate
CAS 151-21-3
EC 205-788-1
Formula C12H26O4S.Na
MW 288.38 g/mol
Surfactants Personal Care & CosmeticsWater TreatmentFood & NutritionTextile, Leather & PaperPrinting & Packaging Cleaning & DegreasingEmulsification & DispersionPreservation & BiocideFoam ControlAntioxidant & Stabilizer
Description
Sodium lauryl sulfate (SLS), also known as SDS, NaDS, Irium, Duponol C, and IPC-SDS, is an anionic surfactant with CAS 151-21-3 and EC 205-788-1. It carries no E-code designation and belongs to the sulfate ester class of surface-active agents.
In personal care formulations, SLS generates dense foam by reducing surface tension at the air-water interface, enabling effective removal of oils and soils from skin and hair. In textile processing, it acts as a wetting and scouring agent, driving aqueous solutions into fiber structures to displace contaminants. It also functions as an antimicrobial agent in certain industrial cleaning systems.
SLS is supplied in powder and crystalline flake form across cosmetic, technical, and food-contact grades, with quality standards including Ph.Eur., FCC, and REACH compliance. It falls under HS code 29209010. Procurement teams should confirm grade specification against intended application, as purity thresholds differ between personal care and food-contact use.
In personal care formulations, SLS generates dense foam by reducing surface tension at the air-water interface, enabling effective removal of oils and soils from skin and hair. In textile processing, it acts as a wetting and scouring agent, driving aqueous solutions into fiber structures to displace contaminants. It also functions as an antimicrobial agent in certain industrial cleaning systems.
SLS is supplied in powder and crystalline flake form across cosmetic, technical, and food-contact grades, with quality standards including Ph.Eur., FCC, and REACH compliance. It falls under HS code 29209010. Procurement teams should confirm grade specification against intended application, as purity thresholds differ between personal care and food-contact use.
Physical Properties
| Melting Point | 204-207 °C |
| Density | 1.01 g/cm³ |
| Flash Point | >100°C |
| Appearance | White crystalline flakes |
| Color | White to pale yellow |
| Odor | Slight fatty odour |
| Form | Powder or Crystals |
| Water Solubility | ca. 150 g/L (20 ºC) |
| pH | 6-9 (10g/l, H2O, 20℃) |
| Log P | 1.600 |
Safety & Handling (Learn More)
Danger GHS02 GHS05 GHS07 GHS06 GHS08 GHS09
H
H228H302H310H311H312H315H318H319H332H335H370H373H400H401H412
P
P210P240P241P260P261P262P264P270P271P273P280P316P317P319P321P330P391P405P501P264+P265P301+P317P302+P352P304+P340P308+P316P332+P317P337+P317P361+P364P362+P364P370+P378P403+P233P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29209010 |
| UN Number | 2926 |
| ADR Class | 4.1 |
| Packing Group | II |
| WGK (Germany) | 2 |
Other Names
sodium dodecyl sulfateSLSSDSNaDSIriumIPC-SDSDuponol C
Related Products
Raw Materials
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