• Sodium Dioctyl Sulfosuccinate CAS  577-11-7
  • Sodium Dioctyl Sulfosuccinate CAS  577-11-7

Sodium Dioctyl Sulfosuccinate CAS 577-11-7

Sodium Dioctyl Sulfosuccinate, chemically identified as the sodium salt of the diester of 2-ethylhexyl alcohol and sulfosuccinic acid, is a highly effective anionic surfactant known for its rapid wetting capabilities. Frequently referenced in technical documentation as Docusate sodium, Diethylhexyl sodium sulfosuccinate, or Sodium bis(2-ethylhexyl) sulfosuccinate, this versatile compound serves as a penetrating agent in textile scouring, a dispersant in coating formulations, and an emulsifier in emulsion polymerization. We offer bulk supply of this wetting agent with competitive factory pricing, customized specifications for varying concentrations (liquid or solid), and full technical support including MSDS, TDS, COA.

  • CAS: 577-11-7
  • Synonyms: Sodium Dioctyl Sulfosuccinate, DOSS, AOT, Sulfosuccinate Surfactant
  • Einecs: 209-406-4
  • Molecular Formula: C₂₀H₃₇O₇SNa
  • Grade: 99%
  • Package: 200kg iron drum or 50kg plastic drum packaging
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Product Description

Physicochemical properties

PropertyDescription
AppearanceColorless to pale yellow transparent liquid (at 25℃)
OdorAlcoholic odor
pH Value (1% aqueous solution)5.0-7.5
Solid Content75% ± 2%
Freezing Point< 0.5℃
Surface Tension (1% aqueous solution)Approximately 28.8 dynes/cm
SolubilitySoluble in water, low-grade alcohols, and polar organic solvents (e.g., benzene, kerosene, petroleum series solvents); water solution appears milky white
StabilityStable in neutral or weakly acidic environments (pH 5-10); sensitive to strong acids, strong bases, and high temperatures (may hydrolyze at elevated temperatures or in concentrated acid/base solutions)
BiodegradabilityFully biodegradable, environmentally friendly
Viscosity< 200 cPs (at 25℃)
Flash Point78℃ (closed cup)

Application Areas

Coatings and inks: As wetting and leveling agents, they improve adhesion, color resolution, and printing efficiency.
Paper industry: As a dispersant, it prevents fiber aggregation and improves paper uniformity.
Detergent: Prepare dry cleaning solution and glass cleaning agent, utilizing their wetting and emulsifying properties.
Pesticide formulation: As a dispersant and wetting agent, it enhances the spreadability of the drug solution on plant surfaces.
Other fields: metalworking fluids, leather processing, adhesives, non-woven fabric adhesives, etc.

Storage conditions

environmental control
Temperature: The storage temperature should be controlled within the range of 5-30 ℃ to avoid hydrolysis of ester groups caused by high temperatures (such as air conditioning cooling in summer).
Humidity: Keep dry and ventilated, with a humidity of ≤ 60%, to prevent moisture absorption, clumping or degradation.
Light exposure: Store in a dark place and avoid direct sunlight. It is recommended to use a light shielded container or store in a cool warehouse.
Packaging and containers
Sealing: Packaged in 25kg, 50kg, or 200kg plastic drums to prevent air, moisture, or impurities from entering.
Material selection: Calcium plastic materials, enamel, stainless steel or fiberglass containers should be preferred to avoid long-term contact with metals (such as iron and aluminum) that may cause corrosion.

‌‌Safety precautions

Protective equipment:
Wear chemical resistant gloves (such as nitrile rubber gloves), goggles, and protective clothing during operation.
In poorly ventilated environments, it is recommended to wear dust masks or half face respirators.
Fire and explosion prevention
Non flammable: OT-75 itself is not flammable, but it should be kept away from sources of fire and high-temperature surfaces to prevent the combustion of other combustibles.
Static protection: Avoid generating static sparks during handling or dumping, and it is recommended to use anti-static equipment or grounding devices.

FAQ - Technical & Supply Chain

  • Q:

    Is Sodium Dioctyl Sulfosuccinate a fast wetting agent?

    A: Yes. DOSS is known for extremely rapid wetting and is effective at very low use levels.
  • Q:

    Is DOSS an anionic surfactant?

    A: Yes. It carries a sulfonate group and functions as a strong anionic surfactant.
Documents

Documents and Product Support

For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

  • COA for batch-based quality reference
  • TDS for key physical and chemical information
  • SDS / MSDS for handling, storage, and safety reference
  • Packing information for sample, trial, and bulk orders
  • Technical communication based on application and specification requirements
Quotation

Information to Confirm Before Quotation

Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

  • Product name and CAS number
  • Application or intended end use
  • Required purity, grade, or specification
  • Sample quantity, trial order, or bulk demand
  • Preferred packing form or net weight
  • Destination country or port
  • Required documents or compliance expectations
Storage & Handling

Packaging, Storage, and Handling Notes

Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

Supply Support

Sample, Bulk Order and Repeat Supply Support

Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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