Description

Polyethylene Glycol Octadecyl Ether CAS NO 9005-00-9 is a nonionic surfactant belonging to the alkyl polyglycol ether family, characterized by its hydrophobic octadecyl (stearyl) chain and hydrophilic polyethylene glycol moiety. This amphiphilic structure provides excellent emulsifying, dispersing, and wetting properties, making it a versatile ingredient in numerous industrial formulations. It is essential for manufacturers in the personal care, textile, agrochemical, and pharmaceutical industries seeking reliable performance and formulation stability.

Application

• Personal Care & Cosmetics: Acts as an emulsifier, opacifier, and viscosity modifier in creams, lotions, and hair care products.
• Textile Processing: Used as a lubricant, softener, and leveling agent in fiber production and fabric finishing.
• Agrochemical Formulations: Serves as an emulsifier and dispersant in pesticides, herbicides, and foliar sprays.
• Industrial Cleaners & Detergents: Functions as a wetting agent and detergent component for hard surface and metal cleaning.
• Pharmaceuticals: Employed as an excipient in topical ointments and creams for its emulsifying properties.
• Paints & Coatings: Acts as a pigment dispersant and grinding aid to improve color consistency and stability.
• Paper & Pulp Industry: Utilized as a defoamer and processing aid in paper manufacturing.

Basic Information

Product Name	Polyethylene Glycol Octadecyl Ether
CAS No.	9005-00-9
Molecular Formula	CnH2n+1(OCH2CH2)mOH (n~18, m variable)
Molecular Weight	Variable, dependent on ethylene oxide units (m)
Synonyms	Steareth (e.g., Steareth-2, Steareth-20); Polyoxyethylene (n) stearyl ether; PEG stearyl ether; POE stearyl ether; Poly(oxy-1,2-ethanediyl), α-octadecyl-ω-hydroxy-; Ethoxylated stearyl alcohol; Brij S series (e.g., Brij S20); Alkyl polyglycol ether C18
EINECS	Contact for details

Quality Control

Our Polyethylene Glycol Octadecyl Ether is manufactured under a strict quality management system. Each batch undergoes rigorous testing for critical parameters including identity, assay, ethylene oxide content, hydroxyl value, and moisture to ensure consistency and performance. Certificates of Analysis (COA) 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, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. Under these conditions, the product has a typical shelf life of 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	White waxy solid to soft paste
Identification (IR)	Conforms
Assay (by EO content)	As per grade (e.g., 70-100%)
Hydroxyl Value	Contact for details
Water Content	≤ 1.0% (Karl Fischer)
pH (5% solution)	5.0 - 7.0
Melting Point / Cloud Point	Grade dependent

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