Description

Polyethylene Glycol Dibutyl Ether is a versatile, non-ionic surfactant and solvent derived from the reaction of polyethylene glycol with butyl ether groups. This compound is valued for its excellent solvating power, low volatility, and ability to act as a phase transfer catalyst and coupling agent in complex formulations. It serves as a critical intermediate and functional additive for manufacturers in the pharmaceutical, agrochemical, coatings, and specialty chemical industries, where precise chemical modification and process stability are required.

Application

• Pharmaceutical Intermediate: Used as a solvent and reaction medium in the synthesis of active pharmaceutical ingredients (APIs) and drug delivery systems.
• Agrochemical Formulations: Acts as a non-ionic surfactant and emulsifier in pesticides, herbicides, and fungicides to improve stability and dispersion.
• Polymer & Resin Production: Serves as a plasticizer, viscosity modifier, and coupling agent in polyurethane, epoxy, and other polymer systems.
• Chemical Synthesis & Catalysis: Functions as a phase transfer catalyst (PTC) to facilitate reactions between immiscible reactants in organic synthesis.
• Industrial Cleaning & Degreasing: A key component in industrial cleaner formulations for its solvating power on oils and greases.
• Textile & Leather Processing: Employed as a softening agent, lubricant, and dyeing auxiliary in textile and leather treatment processes.
• Inks & Coatings: Used as a flow and leveling agent to improve the application properties and film formation of coatings and printing inks.

Basic Information

Product Name	Polyethylene Glycol Dibutyl Ether
CAS No.	31885-97-9
Molecular Formula	CnH2n+2O(n/2+2) (Variable based on PEG chain length)
Molecular Weight	Variable (Contact for details based on specific grade/n-value)
Synonyms	PEG Dibutyl Ether; Poly(oxy-1,2-ethanediyl), α,ω-dibutyl ether; Dibutyl Polyethylene Glycol Ether; α,ω-Dibutoxypoly(oxyethylene); Butyl PEG Ether; Polyethylene Glycol Bis(butyl ether); Polyoxyethylene Dibutyl Ether; DBPE
EINECS	Contact for details

Quality Control

Our Polyethylene Glycol Dibutyl Ether is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with agreed specifications. Certificates of Analysis (COA) documenting key parameters such as assay, water content, and identity are provided with every shipment and are available upon request.

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 material is easily oxidized; for long-term storage, consider an inert atmosphere (e.g., nitrogen blanket). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Acid Value	≤ 1.0 mg KOH/g
Hydroxyl Value	Contact for details
Average Molecular Weight (n-value)	Specified per grade (e.g., n=4, 9, 14, etc.)

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