Description

9-Octadecenoic Acid, 12-Hydroxy-, [R-(Z)]-, Polymer With Methyloxirane And Oxirane (Eo 5-15 Mol, Po 2-8 Mol) is a high-performance, non-ionic polymeric surfactant derived from castor oil, specifically designed for demanding industrial and formulation applications. Its core value lies in its exceptional emulsifying, solubilizing, and stabilizing properties, which are tunable based on the ethylene oxide (EO) and propylene oxide (PO) block lengths. This versatile polymer is essential for manufacturers in the coatings, personal care, and agrochemical industries who require reliable, high-quality ingredients to enhance product performance and stability.

Application

• As a primary emulsifier and stabilizer in water-based industrial coatings, inks, and adhesives.
• Key ingredient in personal care formulations such as creams, lotions, and hair care products for its solubilizing and mild surfactant properties.
• Used in agricultural chemical formulations to improve the emulsification and dispersion of pesticides and herbicides.
• Acts as a viscosity modifier and dispersing agent in pigment concentrates and dye systems.
• Employed in the production of polyurethane foams and elastomers as a reactive polyol component or surfactant.
• Facilitates metalworking fluid formulations by providing lubrication and emulsion stability.
• Utilized in textile processing as a leveling agent and dye assistant.
• Serves as a plasticizer and processing aid in various polymer compositions.

Basic Information

Item	Details
Product Name	9-Octadecenoic Acid, 12-Hydroxy-, [R-(Z)]-, Polymer With Methyloxirane And Oxirane (Eo 5-15 Mol, Po 2-8 Mol)
CAS No.	36497-27-5
Molecular Formula	Typically complex mixture; base unit: C18H34O3 (Ricinoleic acid) polymerized with C2H4O and C3H6O
Molecular Weight	Variable, depending on EO/PO ratio (typically 1000 - 5000 g/mol)
Synonyms	Polyethylene glycol polyhydroxystearate; PEG-Polyhydroxystearate; Castor oil ethoxylate/propoxylate; Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, ether with 12-hydroxy-9-octadecenoic acid (9Z)-, polymer with 2-methyloxirane and oxirane; Ricinoleic acid, polymer with methyloxirane and oxirane; Nonionic surfactant based on castor oil; POE-POP ricinoleate; Hydroxystearic acid PEG/PPG copolymer
EINECS	Contact for details

Quality Control

Our production of this polymeric surfactant adheres to strict quality management systems, ensuring batch-to-batch consistency for critical parameters such as hydroxyl value, acid value, and EO/PO content. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing key specifications. We can supply grades suitable for various industrial standards, and our quality commitment is designed to meet the rigorous demands of global supply chains.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. Under these conditions, the product is stable for an extended period.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid
Identification (IR)	Conforms to structure
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Water Content	≤ 0.5%
Viscosity (at 25°C)	Contact for details
pH (5% solution)	5.0 - 7.0

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