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Sigma-Aldrich

Octyl sulfate sodium salt

for surfactant tests

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Synonym(s):
Octyl sulfate sodium salt, Sodium octyl sulfate
Empirical Formula (Hill Notation):
C8H17NaO4S
CAS Number:
Molecular Weight:
232.27
MDL number:
UNSPSC Code:
12352107
EC Index Number:
205-535-5
NACRES:
NA.22

Quality Level

form

solid

potency

3200 mg/kg LD50, oral (Rat)

pH

6-8 (20 °C, 10 g/L in H2O)

mp

195 °C (decomposition)

bulk density

470 kg/m3

storage temp.

no temp limit

InChI

1S/C8H18O4S.Na/c1-2-3-4-5-6-7-8-12-13(9,10)11;/h2-8H2,1H3,(H,9,10,11);/q;+1/p-1

InChI key

WFRKJMRGXGWHBM-UHFFFAOYSA-M

Application



  • Matrix-assisted laser desorption/ionization: Sodium octyl sulfate was evaluated as a matrix in MALDI-TOF MS for amino acids, showcasing its potential in enhancing ionization efficiency in proteomic analyses (Yazdabadi et al., 2021).


  • Ultrasonic synthesis of stable oil filled microcapsules: This study explores the ultrasonic synthesis of oil-filled microcapsules using thiolated chitosan, potentially involving derivatives like ᴅʟ-N-Acetylhomocysteine thiolactone for improved stability and functional properties. The research provides insights into advanced microencapsulation techniques relevant in pharmaceutical and industrial applications (Source).

Analysis Note

Assay (acidimetric; calculated on dried substance): ≥ 99
Identity (IR-spectrum): passes test
Chloride (Cl): ≤ 0.1 %
Heavy metals (as Pb): ≤ 0.004 %
Free octanol (GC): ≤ 0.1 %
Sulfated ash: 29.0 - 32.0 %
Loss on drying (60 °C; vacuum): ≤ 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 2


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