Sunday, July 11, 2010

Linear Alkylbenzene Sulphonate (LAS)

LAS is a surfactant and is - like soap - responsible for removing the oily & fatty soil adsorbed into fabrics, textiles, china, and any other material we like to clean. Surfactants have characteristics like lowering the surface tension of water to help the fabrics get wet. They also keep the removed soil in suspension during the washing process in order to be washed away with the suds. Surfactants help in several ways to improve the performance of the soap and cleaning agents. LAS is used in nearly all kinds of detergents and cleaning preparations including laundry powders, laundry liquids, manual dishwashing liquids, detergent tablets, soap bars, and household cleaners. LAS may be used in combination with other surfactants to improve the cleaning performance of the formulation and to obtain the best product for each specific application. The amount of LAS used in detergents can vary up to 30% of the weight of the total product.

Today LAS is, after soap, the most widely used surfactant in all detergents and cleaning products. It is the surfactant of choice by detergent manufacturers, not only because it is the most efficient (cost-performance ratio) and versatile, but also because it is the safest one from an environmental and human health point of view. In fact, after more than 30 years of world-wide use, no environmental or human safety negative impact has ever been identified for LAS.


INCI Name: Sodium Dodecylbenzene Sulphonate

Synonyms: Dodecyl Benzne Sulfonic Acid,Dodecylbenzenesulfonic acid sodium salt ,Sodium 4-dodecylbenzenesulphonate


Sodium Dodecyl Benzene Sulfonate is anionic surfactant. It has the property of detergency, moistening, foaming, emulsion and dispersion. Sodium Dodecyl Benzene Sulfonate can be directly used in producing kinds of industrial and daily detergent. The biological degradability of Sodium Dodecyl Benzene Sulfonate is more than 90%.


Sodium Dodecyl Benzene Sulfonate can be used as raw material to produce kinds of detergent, emulsion. Such as laundry powder, dish wash cleaner in daily chemical industrial; cleaner, dyeing assistant in textile industrial; degrease agent in electroplate, leather; de-inking agent in papering.

BIO-SOFT D Series.  Linear alkylbenzene sulfonates (LAS) are the workhorses of the household, industrial and institutional detergent industries. Stepan's BIO-SOFT D sulfonates are the proven choice for many applications. They provide superior detergency, foaming, wetting and emulsification properties -- and all at an economical cost. Stepan's continuous falling film sulfonation process assures high quality, excellent color, low odor and minimum salt content. BIO-SOFT D sulfonates are available in several forms and concentrations to meet your handling and formulating needs. BIO-SOFT D  surfactants are used in laundry and dishwashing detergents, all-purpose cleaners, vehicle cleaning compounds and heavy duty commercial and industrial cleaners as well as industrial applications requiring special surface active properties. BIO-SOFT D sulfonates contain hydrotrope for ease of handling. BIO-SOFT D is readily biodegradable.

BIO-SOFT D Product Bulletin

Saturday, July 10, 2010


Name: Phosphate Polyether Ester
Surfactant Type: Anionic

TRITON™ H-66 is a readily biodegradable, anionic, phosphate polyether ester surfactant used a solubilizer for surfactants into low/moderately built detergent.

Used in:

Solubilizer for surfactants into low/moderately built detergents.

  • Hydrotrope
  • Stable in acidic & alkaline conditions
  • Uniquely effective with low foam surfactants
  • Readily biodegradable

Solubility and Compatibility:

  • Soluble in water
  • Insoluble in aromatic, chlorinated, and aliphatic solvents
  • Chemically stable in acidic and alkaline solutions
  • Compatible with anionic and nonionic surfactants


Chemical formulation with Triton H-66:

What is Tomadol 91-6?

Tomadol 91-6

A nonionic surfactant made from linear C9-11 alcohol with 6 moles (average) of ethylene oxide. Tomadol 91-6 has an HLB of 12.4 and is typically used as the sole nonionic surfactant in aqueous cleaners or in combination with a lower HLB nonionic such as Tomadol 91-2.5. The degree of alkoxylation of the Tomadol 91-6 offers superior wetting in aqueous based cleaners. The Tomadol 91-6 is included in the family of 91 series linear alcohol ethoxylates, which have many end use applications, including a wide variety of cleaning formulations. CTFA Name: C9-11 Pareth-6


  • Low viscosity at room temperature

  • Does not form gels in water at room temperature

  • Low solution times in H20 at room temperature

  • Foaming profile similar to NP-9.0 EO

  • Higher cloud pt. versus NP-9EO, hence better stability

  • Good compatibility with many solvents

  • Excellent biodegradability

  • Kosher

  • Applications

    Acid Cleaners
    All Purpose Cleaners
    Bathroom Cleaners
    Coatings & Paints
    Dishwash Products
    Floor Cleaners
    Soak Tank Cleaners
    Steam Cleaners
    Transportation Cleaners