Description

Poly(Oxy-1,2-Ethanediyl), α-Phosphono-ω-(Tridecyloxy)-, Dipotassium Salt (Average Eo 3-12 Mol) CAS NO 68311-04-6 is a specialized anionic surfactant belonging to the class of phosphate ester salts. This compound is valued for its excellent emulsifying, wetting, and dispersing properties, derived from its unique structure combining a hydrophobic tridecyl chain with a hydrophilic polyoxyethylene and phosphonate head group. It is a critical performance additive for formulators in industries requiring stable emulsions and effective surface activity, particularly where compatibility with electrolytes is necessary.

Application

• Industrial & Institutional Cleaners: Acts as a primary surfactant and emulsifier in heavy-duty alkaline and acidic cleaners, degreasers, and metalworking fluids.
• Textile Processing: Used as a wetting agent, scouring aid, and emulsifier in dyeing and finishing baths, offering stability in high electrolyte environments.
• Agricultural Formulations: Serves as an effective emulsifier and dispersant in pesticide and herbicide concentrates (EC, SC, EW formulations).
• Coatings & Paints: Functions as a pigment dispersant and grinding aid in water-based systems, improving color development and stability.
• Personal Care & Cosmetics: Employed in rinse-off products like shampoos and body washes as a mild secondary surfactant and foam booster.
• Paper & Pulp Industry: Utilized as a debonding agent, dispersant, and processing aid in pulp slurries and coating formulations.

Basic Information

Product Name	Poly(Oxy-1,2-Ethanediyl), α-Phosphono-ω-(Tridecyloxy)-, Dipotassium Salt (Average Eo 3-12 Mol)
CAS No.	68311-04-6
Molecular Formula	C13H27O(C2H4O)nPO3K2 (n=3-12 avg.)
Molecular Weight	Variable (Average ~550-850 g/mol)
Synonyms	PEG-3-12 Tridecyl Ether Phosphate, Dipotassium Salt; Trideceth-3-12 Phosphate; Polyoxyethylene (3-12) Tridecyl Ether Phosphate, Dipotassium Salt; Phosphoric Acid, Mono(Polyoxyethylene) Tridecyl Ester, Dipotassium Salt; Anionic Phosphate Ester Surfactant; Potassium Trideceth Phosphate; 68311-04-6; Alkyl Phosphate Ester, Dipotassium Salt
EINECS	Contact for details

Quality Control

Our production of Poly(Oxy-1,2-Ethanediyl), α-Phosphono-ω-(Tridecyloxy)-, Dipotassium Salt adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent performance and meets specifications for critical parameters such as active matter content, pH, and color. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect product performance.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Color (Gardner)	≤ 3
Active Matter	≥ 95.0 %
pH (10% Aqueous Solution)	6.0 - 8.0
Water Content	≤ 3.0 %
Identification (IR)	Conforms

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.