Calsoft® AOS-40 HP is a 40% active solution of sodium C14-16 alpha olefin sulfonate, known for its high foaming power, good emulsification, skin mildness, and excellent lime soap dispersion. It is utilized in personal care and HI&I applications.

INCI Name: Sodium C14-16 Olefin Sulfonate

Chemical Name: Sulfonic acids, C14-16-alkane hydroxy and C14-16-alkene, sodium salts

CAS Number: 68439-57-6

Certifications & Compliance: Australian Industrial Chemicals Introduction Scheme (AICIS), EPA Registered

Synonyms: Alkenes, C14-16 α-, sulfonated, sodium salts, Sulfochem AOS-K, C14-C16-Alkanehydroxysulfonic Acids Sodium Salts

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Enhanced TDS

Identification & Functionality

Features & Benefits

Benefit Claims
HII Features
Product Benefits
  • Calsoft® AOS-40 HP is manufactured at a high pH to eliminate the need for a preservative, giving formulators flexibility to use a preservative of their choice.
  • Calsoft® AOS-40 HP has excellent cost performance characteristics and foam properties, along with broad pH stability, great viscosity building, and mildness properties.
  • Calsoft® AOS-40 HP offers improved mildness over sodium lauryl sulfate.
  • Calsoft® AOS-40 HP is fully compatible with other anionic, amphoteric, and nonionic surfactants.
  • Calsoft AOS-40 HP is CleanGredients® Listed, which means it has been pre-approved by the U.S. EPA to meet the criteria of their Safer Choice Standard.
  • This certification may streamline the approval process for EPA’s Safer Choice program, getting a formulator’s Safer Choice labeled product to market faster.

Applications & Uses

Application Format
Bath & Shower Applications
Hair Care Applications
Home Care Applications
I&I Cleaning Applications
Personal Hygiene Applications
Product Applications
  • Calsoft® AOS-40 HP is an anionic surfactant of choice for personal care and HI&I applications.
  • Calsoft® AOS-40 HP offers excellent cleansing, foam characteristics, viscosity, and skin mildness to produce cost effective and high performing shampoo, body wash hand soap and pet care formulations.
  • Calsoft® AOS-40 HP provides copious stable foam, mildness to the hands, hard water tolerance, excellent cleaning and grease cutting properties in light duty dish liquid and heavy-duty laundry detergents.
  • Calsoft® AOS-40 HP provides exceptional foam volume and cleaning characteristics in both manual and automatic car wash products.


Clear pale yellow liquid (at 25°C)
Miscible in
Compatible with
Other anionic, amphoteric, and nonionic surfactants
Typical Properties
ValueUnitsTest Method / Conditions
Active Content40wt%-
Color (at 5% Active Solution, 40mm)max. 70-Klett
Freeze Point28°F-
pH (at 10% Solution)10.5 - 12.0--
Unsulfonated Materialmax. 1.25wt%-

Regulatory & Compliance

Packaging & Availability

Packaging Type
Supplied by
Packaging Information

Calsoft® AOS-40 HP is available in 485 lb. poly drums, 2300 lb. poly totes, and bulk quantities.

Storage & Handling

Shelf Life
2 years
Storage and Handling Information
  • Store in a tightly closed container.
  • Do not store with strong oxidizing agents.
  • Avoid contact with aluminum, iron, copper, and titanium.
  • Avoid excessive heat.
  • Recommended storage temperatures are 51-100°F to protect from freezing and from forming a solid gel at the bottom of containers.
  • Avoid contact with eyes, skin, and clothing.
  • Wear appropriate personal protective equipment and observe good industrial hygiene practices.