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Sodium laureth sulfate

Sodium laureth sulfate
Sodium laureth sulfate structure.png
Names
IUPAC name
α-sulfo-ω-(dodecyloxy)-poly(oxyethane-1,2-diyl), sodium salt
Other names
Sodium lauryl ether sulfate
Sodium laureth sulphate
Sodium lauryl ether sulphate
Identifiers
9004-82-4 YesY
Abbreviations SLES
ECHA InfoCard 100.036.281
PubChem 23665884 sodium;2-dodecoxyethyl sulfate
UNII ZZQ59TY3KG sodium laureth-2 sulfate N
BPV390UAP0 sodium laureth-3 sulfate N
410Q7WN1BX sodium laureth-5 sulfate N
Properties
CH3(CH2)11(OCH2CH2)nOSO3Na
Molar mass around 420 g/mol
(288.38 + 44.05n) g/mol
Hazards
NFPA 704
Flammability code 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g., canola oil Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YesYN ?)
Infobox references

Sodium laureth sulfate (SLES), an accepted contraction of sodium lauryl ether sulfate (SLES), is an anionic detergent and surfactant found in many personal care products (soaps, shampoos, toothpaste etc.). SLES is an inexpensive and very effective foaming agent. SLES, sodium lauryl sulfate (SLS), ammonium lauryl sulfate (ALS), and sodium pareth sulfate are surfactants that are used in many cosmetic products for their cleaning and emulsifying properties. They behave similarly to soap.

Its chemical formula is CH3(CH2)11(OCH2CH2)nOSO3Na. Sometimes the number represented by n is specified in the name, for example laureth-2 sulfate. The product is heterogeneous in the number of ethoxyl groups, where n is the mean. It is common for commercial products for n= 3.

SLES is prepared by ethoxylation of dodecyl alcohol. The resulting ethoxylate is converted to a half ester of sulfuric acid, which is neutralized by conversion to the sodium salt. The related surfactant sodium lauryl sulfate (also known as sodium dodecyl sulfate or SDS) is produced similarly, but without the ethoxylation step. SLS and ammonium lauryl sulfate (ALS) are commonly used alternatives to SLES in consumer products.


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