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Colonial SOS is a highly biodegradable wetting agent that is stable under varying conditions of pH and temperature.

CAS Number: 142-31-4

Functions: Rinse Aid, Surfactant, Surfactant (Anionic), Wetting Agent

Labeling Claims: Biodegradable

Synonyms: Octyl sodium sulfate, Sodium caprylyl sulfate, Sodium monooctyl sulfate, Sodium n-octyl sulfate, Sodium octyl sulfate, SOS

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Identification & Functionality

CAS No.
142-31-4
EC No.
205-535-5

Features & Benefits

Labeling Claims
HII Features
Product Highlights

In the mercerizing of gray cotton goods, Colonial SOS wets efficiently and remains stable in the 20-25 & caustic solutions generally used for this purpose. At levels of 1% surfactant, Colonial SOS demonstrates wetting times of 6.8 seconds in 20% NaOH and 8.2 seconds in 25% NaOH. These figures represent the sinking time for a standard bundle of cotton in a caustic solution of mercerizing strength.

Used as a rinse aid, Colonial SOS helps dishes and glassware to drain completely, reducing spots and streaks. The low foaming characteristics of Colonial SOS permit its use in automatic dishwashers or other mechanical cleaning devices where rapid agitation occurs.

Applications & Uses

Markets
Recommended Uses & Known Applications

Colonial SOS is a highly biodegradable wetting agent that is stable under varying conditions of pH and temperature. The rapid wetting and low foam characteristics of Colonial SOS is recommended for applications such as:

  • Fire extinguishing foam agent
  • Mercerizing agent for textiles
  • Surfactant in electrolyte baths for metal cleaning
  • Wetting agent for hard surface cleaning

Properties

Physical Form
Odor
Characteristic
Typical Properties
ValueUnitsTest Method / Conditions
Alkyl Sulfate Content32-34%
pH (10% aqueous)7-9
Viscosity (Rv#2 at 50RPM at 25°C)max. 100
Specific Gravity (25°C)1.04-1.08

Regulatory & Compliance

Packaging & Availability

Packaging Type
Packaging Information

Colonial SOS is shipped in poly 55-gal drums, net weight 450 lbs (204.1 kg).

Storage & Handling

Shelf Life
12 months
Storage

Colonial SOS should be stored in closed containers.