Sodium octanesulfonate

CAS Number
5324-84-5
EC Number
226-195-4
Chemical Formula
C8H18O3S.Na
Molecular Weight
217.28 g/mol

Description

Sodium octanesulfonate (CAS 5324-84-5) is an anionic surfactant used across industrial and specialty chemical applications. Its eight-carbon alkyl chain delivers a balance of hydrophobicity and water solubility that suits both surface-active and ion-pairing functions. Buyers source it as a process chemical for separation, formulation, and cleaning applications. In analytical and preparative chromatography, it functions as an ion-pair reagent for HPLC separation of polar and ionic compounds.

This is particularly useful in pharmaceutical quality control workflows. Textile and leather processors use it as a wetting and penetration agent to improve dye uptake and chemical treatment uniformity across fiber substrates. In industrial and institutional cleaning formulations, it contributes to emulsification and soil release on hard surfaces and equipment. Personal care manufacturers incorporate it into select rinse-off formulations.

These applications often require controlled foaming and surfactant mildness as process requirements. Sodium octanesulfonate is supplied as a white to off-white powder or as an aqueous solution, depending on the supplier. Standard grades include high-purity reagent and HPLC-grade material for analytical use, as well as technical grade for industrial cleaning and textile processing. Packaging ranges from laboratory quantities to bulk industrial volumes.

Other Names (Synonyms)

RefChem:931921|1-Octanesulfonic acid, sodium salt|1-Octanesulfonic acid, sodium salt (1:1)|Sodium octylsulfonate|Sodium 1-octanesulfonate|SODIUM SALT

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

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Physical Properties

Melting Point >300 °C(lit.)
Boiling Point >300 °C(lit.)
Appearance white powder
Color White
Form Crystalline Powder
Water Solubility Soluble in water producing a clear and colorless solution.
pH 5.5-7.5 (100g/l, H2O, 20℃)
Log P -2.25 at 19.8℃

Safety & Handling (Learn More)

Warning
GHS07· Irritant

Hazard Statements

H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation

Precautionary Statements

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P319 Get medical advice/attention if you feel unwell.
P321 Specific treatment (see … on this label).
P405 Store locked up.
P501 Dispose of contents/container in accordance with local regulations.
P264+P265 Wash … thoroughly after handling.
P302+P352 IF ON SKIN: Wash with plenty of water.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P332+P317 Get emergency medical help.
P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code 29041000
Storage Class 8B - Non-combustible corrosive hazardous materials
WGK (Germany) 3

Documentation

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