Description

Oxirane, Methyl-, Polymer With Oxirane, Mono(Hydrogen 2-Butenedioate), C9-11-Alkyl Ethers, Sodium Salts is a specialized anionic polymeric surfactant derived from propylene oxide and ethylene oxide, partially esterified with maleic acid and neutralized with sodium. This compound matters for its unique combination of wetting, dispersing, and emulsifying properties in demanding aqueous systems. Industrial formulators need it for creating high-performance cleaning agents, textile auxiliaries, and coating additives where stability and surface activity are critical.

Application

• Industrial & Institutional (I&I) Cleaners: Acts as a powerful wetting agent and dispersant in alkaline and acidic hard surface cleaners, degreasers, and vehicle wash formulations.
• Textile Processing: Used as a scouring agent, dye leveling agent, and dispersant in pre-treatment and dyeing baths to ensure uniform color and remove impurities.
• Coatings & Paints: Serves as a pigment grinding aid and dispersant in water-based architectural and industrial coatings, improving color development and long-term stability.
• Pulp & Paper: Functions as a dispersant and deposit control agent in paper coating formulations and pulp processing to enhance sheet quality and machine runnability.
• Agricultural Formulations: Employed as a compatibilizer and dispersant in pesticide and herbicide suspensions and emulsifiable concentrates (ECs).
• Personal Care: Can be utilized in select rinse-off products as a mild surfactant and foam booster, depending on the specific grade and purity.

Basic Information

Product Name	Oxirane, Methyl-, Polymer With Oxirane, Mono(Hydrogen 2-Butenedioate), C9-11-Alkyl Ethers, Sodium Salts
CAS No.	113133-72-5
Molecular Formula	Typically a complex mixture; Contact for details
Molecular Weight	Variable (Polymer); Contact for details
Synonyms	Maleic Acid, Monoester with Alkyl (C9-11) Polyglycol Ether, Sodium Salt; Poly(oxy-1,2-ethanediyl), α-(2-butenedioyl)-ω-(C9-11-alkyloxy)-, Sodium Salt; Propylene Oxide-Ethylene Oxide Copolymer Maleate; PO/EO Copolymer Maleic Ester Sodium Salt; Alkyl Polyglycol Ether Maleate, Sodium Salt; Anionic Polymeric Surfactant; Dispersant 113133-72-5; Wetting Agent 113133-72-5
EINECS	Contact for details

Quality Control

Our production of Oxirane, Methyl-, Polymer With Oxirane, Mono(Hydrogen 2-Butenedioate), C9-11-Alkyl Ethers, Sodium Salts adheres to a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance characteristics such as active matter content, pH, viscosity, and cloud point. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance protocols.

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 product is hygroscopic (moisture-sensitive). Keep the 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	Colorless to pale yellow
Active Matter	≥ 40%
pH (10% solution)	6.0 - 8.0
Viscosity (25°C)	500 - 2500 mPa·s
Water Content	≤ 60%
Identification (IR)	Conforms

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