Description

Fatty Acids, C16-18 And C18-Unsatd., Diesters With Polyethylene Glycol CAS NO 68989-57-1 is a non-ionic surfactant and emulsifier derived from the esterification of mixed C16-C18 saturated and unsaturated fatty acids with polyethylene glycol. This compound is valued for its excellent emulsifying, dispersing, and lubricating properties, making it a versatile functional additive. It is primarily used in the formulation of industrial lubricants, textile processing aids, and personal care products where stable oil-in-water emulsions are required.

Application

• As an emulsifier and lubricant in synthetic metalworking fluids and industrial lubricants.
• As a softening agent and fiber lubricant in textile manufacturing and finishing processes.
• As a co-emulsifier and opacifying agent in cosmetic and personal care formulations such as creams, lotions, and hair conditioners.
• As a dispersing agent and viscosity modifier in agrochemical formulations and pesticide emulsions.
• As a processing aid and internal/external lubricant in polymer and plastic compounding.
• As a component in industrial and institutional cleaning products for enhanced soil removal and emulsification.

Basic Information

Product Name	Fatty Acids, C16-18 And C18-Unsatd., Diesters With Polyethylene Glycol
CAS No.	68989-57-1
Molecular Formula	Typically a complex mixture; Contact for details
Molecular Weight	Varies by PEG chain length and fatty acid composition
Synonyms	PEG diester of mixed fatty acids (C16-18); Polyethylene glycol fatty acid diester; PEG diesters of C16-C18 and C18 unsaturated fatty acids; Polyoxyethylene diester of mixed fatty acids; Nonionic surfactant based on PEG and fatty acids; Fatty acid PEG diester; Emulsifier PEG diester; Textile lubricant PEG ester
EINECS	Contact for details

Quality Control

Our production of Fatty Acids, C16-18 And C18-Unsatd., Diesters With Polyethylene Glycol adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent performance characteristics such as saponification value, hydroxyl value, acid value, and moisture content. Certificates of Analysis (COA) documenting these specifications 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, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid
Acid Value (mg KOH/g)	≤ 2.0
Saponification Value (mg KOH/g)	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Moisture Content (Karl Fischer)	≤ 1.0%
pH (10% solution)	5.0 - 7.0

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