Description

Poly(Oxy-1,2-Ethanediyl), α-Phosphono-ω-(Dodecyloxy)-, Diammonium Salt (Eo 2-8 Mol) is a specialized anionic surfactant and phosphonate derivative, valued for its dual functionality as a wetting agent and scale inhibitor. Its molecular structure, featuring a hydrophobic dodecyl chain and a hydrophilic polyoxyethylene (EO 2-8) phosphonate head group, provides excellent compatibility and performance in demanding aqueous systems. This compound is essential for formulators and process engineers in industries such as industrial cleaning, textile processing, and water treatment, where it effectively reduces surface tension and controls inorganic deposits. The CAS number for this product is 142939-64-8.

Application

• Industrial & Institutional (I&I) Cleaners: Acts as a powerful wetting agent and detergent builder in alkaline and acidic formulations for hard surface cleaning.
• Textile Processing: Used as a scouring agent, dyeing assistant, and anti-precipitant to ensure even dye penetration and prevent scale buildup on machinery.
• Water Treatment Formulations: Serves as a key component in scale and corrosion inhibitor blends for cooling water, boiler water, and reverse osmosis systems.
• Paints & Coatings: Functions as a pigment dispersant and grinding aid, improving color development and stability in aqueous coating systems.
• Metalworking Fluids: Enhances the wetting and lubricity of coolants and drawing compounds, improving surface finish and tool life.
• Agricultural Adjuvants: Incorporated into pesticide and herbicide formulations to improve spray droplet coverage and foliar adhesion.
• Personal Care: Used in specialized rinse-off products like shampoos and body washes for its mildness and foam-boosting properties.
• Paper & Pulp Industry: Applied as a dispersant and deposit control agent in pulp slurries and paper coating formulations.

Basic Information

Product Name	Poly(Oxy-1,2-Ethanediyl), α-Phosphono-ω-(Dodecyloxy)-, Diammonium Salt (Eo 2-8 Mol)
CAS No.	142939-64-8
Molecular Formula	C16H37NO7P (for EO=2, approximate) / CnH2n+1(OCH2CH2)mOPO3H2 · 2NH3 (m=2-8)
Molecular Weight	~386.4 g/mol (for EO=2) to ~618.7 g/mol (for EO=8)
Synonyms	Dodecyl polyoxyethylene ether phosphoric acid, diammonium salt; Laureth (2-8) phosphate, diammonium salt; PEG (2-8) dodecyl ether phosphate, diammonium salt; APE-free phosphate ester surfactant; Alkyl ethoxylate phosphate (AEOP), diammonium salt; Phosphated LAE (2-8 EO); Poly(oxy-1,2-ethanediyl), α-phosphono-ω-(dodecyloxy)-, diammonium salt; Anionic surfactant APD.
EINECS	Contact for details

Quality Control

Every batch of our Poly(Oxy-1,2-Ethanediyl), α-Phosphono-ω-(Dodecyloxy)-, Diammonium Salt is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards for surfactants and phosphonates. Key parameters including active matter content, pH, free phosphate levels, and ethylene oxide distribution are rigorously controlled. Certificates of Analysis (COA) documenting these specifications are provided with each shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive). Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect product performance and flow characteristics.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Color	Colorless to pale yellow
Identification (IR)	Conforms to structure
Active Matter (as received)	≥ 95.0 %
pH (5% aqueous solution)	6.0 - 8.0
Water Content (Karl Fischer)	≤ 3.0 %
Free Phosphoric Acid	≤ 1.5 %
Ethylene Oxide (EO) Units (navg)	2 - 8

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