Description

Polyethylene Glycol CAS NO 25322-68-3 is a versatile, water-soluble polymer belonging to the polyether family, characterized by its repeating ethylene oxide units. This compound is highly valued for its excellent solubility, low toxicity, and broad compatibility, making it a critical functional ingredient across numerous industries. It is an essential material for formulators and manufacturers in the pharmaceutical, personal care, chemical processing, and food sectors seeking reliable performance and regulatory compliance.

Application

• Pharmaceuticals: Widely used as a solvent, binder, lubricant, and base for ointments, creams, and suppositories; also serves as an excipient in tablet formulations.
• Personal Care & Cosmetics: Acts as a humectant, thickener, and emulsion stabilizer in lotions, creams, shampoos, and deodorants.
• Industrial Manufacturing: Functions as a plasticizer, lubricant, and mold release agent in ceramics, metalworking, and rubber processing.
• Chemical Intermediates: Utilized as a raw material for producing surfactants, emulsifiers, and other specialty chemicals.
• Food Industry: Approved for use as an anti-foaming agent, binder, and texturizer in various food products.
• Laboratory & Biotechnology: Employed in protein crystallization, cell fusion, and as a component in buffer solutions.

Basic Information

Product Name	Polyethylene Glycol
CAS No.	25322-68-3
Molecular Formula	H(OCH2CH2)nOH
Molecular Weight	Varies by grade (typically 200 - 35,000 g/mol)
Synonyms	PEG; Macrogol; Poly(oxyethylene) glycol; Poly(ethylene oxide); α-Hydro-ω-hydroxy-poly(oxy-1,2-ethanediyl); Ethylene glycol polymer; Oxirane homopolymer; Carbowax™; Lutrol® E
EINECS	200-849-9

Quality Control

Our Polyethylene Glycol is manufactured under a strict quality management system. We offer various grades, including Industrial, Technical, USP, NF, and FCC, to meet diverse application requirements. Each batch is tested against stringent specifications for identity, purity, and physical properties. A Certificate of Analysis (COA) documenting key parameters such as average molecular weight, hydroxyl value, pH, and residue on ignition is provided to ensure traceability and compliance.

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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product properties.

Specification

Item	Specification
Appearance	White waxy solid or colorless viscous liquid
Identification (IR)	Conforms
Average Molecular Weight	As per grade (e.g., PEG 400, 1500, 4000, 6000)
Hydroxyl Value	Contact for details
pH (5% Solution)	4.5 - 7.5
Water Content	≤ 1.0%
Residue on Ignition	≤ 0.1%

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