BIO-TERGE® PAS-8S is a low-foaming anionic surfactant with excellent coupling and wetting properties. Its versatility shines in formulating hi&i cleaners, covering areas like hard surface cleaning, carpet cleaning, machine dishwashing, and glass cleaning. Its compliance with the u.S. Epa safer choice program and cleangredients.Org adds to its appeal.
Chemical Name: Sodium Octane Sulfonate
Function: Surfactant, Degreaser, Surfactant (Anionic), Scouring Agent
CAS Number: 5324-84-5
Labeling Claims: Kosher, Ethylene Oxide-free, PO-free
Certifications & Compliance: Kosher, Safer Choice
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TypeDocument Name
Other
Stepan Company Commercial Policy
Stepan Company Commercial Policy
OtherBrochure
Stepan’s CleanGredients® Product & Formulation Guide
Stepan’s CleanGredients® Product & Formulation Guide
BrochureOther
Stepan Kosher Certificate
Stepan Kosher Certificate
OtherTechnical Data Sheet
BIO-TERGE® PAS-8S Technical Data Sheet
BIO-TERGE® PAS-8S Technical Data Sheet
Technical Data SheetSafety Data Sheet
BIO-TERGE® PAS-8S Safety Data Sheet
BIO-TERGE® PAS-8S Safety Data Sheet
Safety Data SheetOther
Stepan Company Ecotoxicology of Alkane Sulfonates
Stepan Company Ecotoxicology of Alkane Sulfonates
OtherOther
Stepan Company Mammalian Toxicology of Alkane Sulfonates
Stepan Company Mammalian Toxicology of Alkane Sulfonates
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Stepan Company Biodegradation of Alkane Sulfonates
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Identification & Functionality
Chemical Name
Cleaning Ingredients Functions
Fluids & Lubricants Functions
Industrial Additives Functions
CAS No.
EC No.
Technologies
Product Families
Chemical Structure
RCH2–SO3Na
R=C7
BIO-TERGE® PAS-8S Features & Benefits
Labeling Claims
Fluids & Lubricants Features
Industrial Additives Features
Product Features
- Lower foaming
- Hydrotrope that adds cleaning power
- Stable across wide pH range
- Compatible with hypochlorite and peroxide formulas
Biodegradability
BIO-TERGE® PAS-8S is biodegradable.
Applications & Uses
Markets
Applications
Fluids & Lubricants Type
Fluids & Lubricants End Use
I&I Cleaning Applications
Industrial Additives End Use
Applications
BIO-TERGE PAS-8S is a high quality, light colored, aqueous solution of primary alkane sulfonate; it is a low foaming, biodegradable anionic surfactant with excellent coupling properties. BIO-TERGE PAS-8S provides good wetting and hydrotropic properties as well as stability over a wide pH range. BIO-TERGE PAS-8S offers versatility in formulating industrial and institutional cleaners due to its excellent solubility in highly acidic and alkaline systems as well as good compatibility with detergent builders and bleach.
Properties
Physical Form
Appearance
Typical Properties
| Value | Units | Test Method / Conditions | |
| Cloud Point | 8 | °C | - |
| Actives Content (EW 242) | 37.8 | % | - |
| Color | 1 | - | Gardener Scale |
| Critical Micelle Concentration (CMC) | 10304 | mg/l | - |
| Density | 1.1 | g/ml | - |
| Flash Point | 77 | °C | SETA Flash Point Tester |
| Sodium Sulfate Content | 2 | % | - |
| pH | 5.1 | - | - |
| Freeze Point | -3 | °C | - |
| Pour Point | 0 | °C | - |
| Residual Bleach | 0.03 | % | - |
| Viscosity (at 25°C) | 17 | cPs | - |
| Viscosity (at 60 °C) | 8 | cPs | - |
| Regulated Volatile Organic Chemicals (Isopropanol) | max. 5 | % | U.S. EPA |
Regulatory & Compliance
Certifications & Compliance
Clearances
- BIO-TERGE PAS-8S is exempt from the requirement of a tolerance under 40 CFR 180.940a, 180.940b, & 180.940c at end-use concentrations of no more than 121 ppm, 781 ppm, and 821 ppm, respectively, when ready for use. These CFR sections should be consulted for complete context before any conclusion is made as to the allowed regulated use.
- BIO-TERGE PAS-8S meets the U.S. EPA Safe Choice Program’s surfactant screen.
Safety & Health
Toxicity
BIO-TERGE PAS-8S is practically non-toxic orally (LD₅₀> 5 g/kg) and it causes moderate skin and eye irritation at 31% active. The product is not a dermal sensitizer.
Packaging & Availability
Packaging Type
Standard Packaging
BIO-TERGE PAS-8S is available in bulk and in 55-gallon drums.
Storage & Handling
Storage & Handling
- Handle BIO-TERGE PAS-8S with care; use away from sparks and open flame. Use in well ventilated area. Contact with eyes, nose or prolonged skin contact should be avoided. Wash thoroughly after handling material.
- It is recommended that BIO-TERGE PAS-8S be stored in sealed containers and kept in a cool, dry place. If it cools below the cloud point, the product will separate. Once separated it is difficult to reconstitute even with heat and agitation. When separated the chemical properties are not affected. BIO-TERGE PAS-8S that has been stored cold may develop a haze. This is normal and does not affect its performance.
- Bulk Storage Information: BIO-TERGE PAS-8S should be stored in vessels of 316 stainless steel or fiberglass with a corrosion liner. Material should be stored between 60 – 80°F (16 – 27°C). An internal hairpin coil of stainless steel with low pressure steam (under 50 psig) should be used if heating is required. Mild agitation is required if the tank is heated. Material is heat sensitive and agitation prevents localized heating. Heating may not be required for inside storage if the tank is turned over frequently. Stainless steel 316 is preferred for pumps, pipes and transfer lines.
BIO-TERGE® PAS-8S
Stepan Company