Sodium dodecyl sulfate

Sodium lauryl sulfate
Space-filling model of the sodium dodecyl sulfate crystal
Space-filling model of the dodecyl sulfate ion
Names
Preferred IUPAC name
Sodium dodecyl sulfate
Other names
Sodium monododecyl sulfate; Sodium lauryl sulfate; Sodium monolauryl sulfate; Sodium dodecanesulfate; dodecyl alcohol, hydrogen sulfate, sodium salt; n-dodecyl sulfate sodium; Sulfuric acid monododecyl ester sodium salt
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.005.263 Edit this at Wikidata
E number E487 (thickeners, ...)
UNII
  • InChI=1S/C12H26O4S.Na/c1-2-3-4-5-6-7-8-9-10-11-12-16-17(13,14)15;/h2-12H2,1H3,(H,13,14,15);/q;+1/p-1 checkY
    Key: DBMJMQXJHONAFJ-UHFFFAOYSA-M checkY
  • CCCCCCCCCCCCOS(=O)([O-])=O.[Na+]
Properties
C12H25NaSO4
Molar mass 288.372 g/mol
Appearance white or cream-colored solid
Odor odorless
Density 1.01 g/cm3
Melting point 206 °C (403 °F; 479 K)
Surface tension:
8.2 mM at 25 °C[1]
1.461
Pharmacology
A06AG11 (WHO)
Hazards
Lethal dose or concentration (LD, LC):
1288 mg/kg (rat, oral)
Related compounds
Other anions
Sodium laureth sulfate
Sodium myreth sulfate
Other cations
Ammonium lauryl sulfate
Potassium lauryl sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Sodium dodecyl sulfate (SDS) or sodium lauryl sulfate (SLS), sometimes written sodium laurilsulfate, is an organic compound with the formula CH3(CH2)11OSO3Na and structure H3C(CH2)11−O−S(=O)2−ONa+. It is an anionic surfactant used in many cleaning and hygiene products. This compound is the sodium salt of the 12-carbon organosulfate. Its hydrocarbon tail combined with a polar "headgroup" give the compound amphiphilic properties that make it useful as a detergent. SDS is also component of mixtures produced from inexpensive coconut and palm oils. SDS is a common component of many domestic cleaning, personal hygiene and cosmetic, pharmaceutical, and food products, as well as of industrial and commercial cleaning and product formulations.[2]

  1. ^ P. Mukerjee, P. & Mysels, K. J. (1971), "Critical Micelle Concentration of Aqueous Surfactant Systems," NSRDS-NBS 36, Washington, DC: US. Government Printing Office.[full citation needed][page needed]
  2. ^ Cite error: The named reference UllmannSurf was invoked but never defined (see the help page).