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CAS 1120-04-3

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Sodium octadecyl sulfate

Description:
Sodium octadecyl sulfate (SOS) is an anionic surfactant characterized by its long hydrophobic hydrocarbon chain and a sulfate group, which imparts its surfactant properties. With a molecular formula of C18H37NaO4S, it features an 18-carbon alkyl chain, making it highly effective in reducing surface tension in aqueous solutions. SOS is typically used in various applications, including as a dispersing agent, emulsifier, and stabilizer in formulations such as cosmetics, pharmaceuticals, and food products. Its amphiphilic nature allows it to interact with both water and oil, facilitating the mixing of immiscible substances. Additionally, SOS exhibits good foaming properties and can enhance the solubility of hydrophobic compounds. However, like many surfactants, it may have environmental implications, particularly in aquatic systems, and should be handled with care to minimize potential toxicity. Overall, sodium octadecyl sulfate is valued for its effectiveness in promoting stability and enhancing the performance of various formulations.
Formula:C18H37NaO4S
InChI:InChI=1/C18H38O4S.Na/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-22-23(19,20)21;/h2-18H2,1H3,(H,19,20,21);
InChI key:InChIKey=KVLWVMFPAVOFSG-UHFFFAOYSA-N
SMILES:C(CCCCCCCCCCCCCCCC)COS(=O)(=O)O.[Na]
Synonyms:
  • 1-Octadecanol, Hydrogen Sulfate, Sodium Salt
  • Octadecyl sodium sulfate
  • Octadecyl sulfate sodium salt
  • Sodium Octadecyl Sulfate
  • Sodium monooctadecyl sulfate
  • Sodium monostearyl sulfate
  • Sodium n-octadecyl sulphate
  • Sodium stearyl sulfate
  • Sulfuric acid, monooctadecyl ester, sodium salt
  • Sulfuric acid, monooctadecyl ester, sodium salt (1:1)
  • See more synonyms
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