Description

C18E3 CAS NO 4439-32-1 is a high-purity, non-ionic surfactant belonging to the polyoxyethylene alkyl ether family, specifically an octadecyl alcohol ethoxylate. This compound is valued for its excellent emulsifying, wetting, and dispersing properties in a wide range of industrial formulations. It is a critical raw material for manufacturers in the agrochemical, textile, personal care, and industrial cleaning sectors seeking reliable performance and consistent quality.

Application

• Agrochemical Formulations: Acts as a key emulsifier and wetting agent in herbicides, insecticides, and fungicides, enhancing spray coverage and active ingredient efficacy.
• Textile Processing: Used as a scouring, leveling, and dyeing assistant to improve fiber wetting and ensure uniform color application.
• Industrial & Institutional (I&I) Cleaners: Serves as a primary surfactant in heavy-duty degreasers, metal cleaners, and floor care products for superior oil and grease removal.
• Personal Care & Cosmetics: Functions as an emulsifier and thickener in creams, lotions, and hair care products, providing stable emulsions and a desirable sensory profile.
• Paints & Coatings: Employed as a dispersing agent for pigments and fillers, improving color development and stability in water-based systems.
• Polymerization: Used as an emulsifier in emulsion polymerization processes for the production of synthetic rubbers, latex, and PVC.
• Leather Processing: Aids in fatliquoring and dyeing processes, ensuring even penetration of oils and dyes into the leather.
• Paper & Pulp Industry: Acts as a deinking agent and dispersant in paper recycling and pulp processing operations.

Basic Information

Item	Details
Product Name	C18E3
CAS No.	4439-32-1
Molecular Formula	C24H50O4
Molecular Weight	402.66 g/mol
Synonyms	Polyoxyethylene (3) stearyl ether; Steareth-3; PEG-3 stearyl ether; α-Stearyl-ω-hydroxy-tri(oxyethylene); Octadecanol, ethoxylated (3 EO); 3-(Octadecyloxy)-3-oxopropan-1-ol; Ethanol, 2,2'-[1-(octadecyloxy)-1,2-ethanediyl]bis-; Brij S3 (trade name)
EINECS	224-640-3

Quality Control

Our C18E3 is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for critical parameters such as hydroxyl value, ethylene oxide content, and cloud point. A comprehensive Certificate of Analysis (COA) documenting purity, identity, and physical properties is provided with each shipment to guarantee traceability and compliance with your quality standards.

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 remains stable for an extended period.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Hydroxyl Value (mg KOH/g)	135 - 150
Cloud Point (1% in water)	40 - 50 °C
Moisture (KF)	≤ 0.5%
pH (1% solution)	5.0 - 7.0

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