Description

Polyethyleneimine CAS NO 26913-06-4 is a highly branched cationic polymer with a high density of amine groups, making it a versatile and powerful functional agent. Its unique structure provides exceptional binding, flocculating, and surface modification properties, which are critical for enhancing product performance and process efficiency. This polymer is essential for industries such as water treatment, paper manufacturing, biotechnology, and personal care, where its ability to interact with a wide range of materials is highly valued.

Application

• Flocculant and Coagulant Aid in water and wastewater treatment for the removal of suspended solids and organic matter.
• Retention and Drainage Aid in papermaking processes to improve fiber retention, sheet formation, and water drainage.
• Surface Modifier and Adhesion Promoter for coatings, inks, and composites to enhance substrate wetting and bonding.
• Gene Transfection Reagent in biotechnology and molecular biology for delivering nucleic acids into cells.
• Cross-linking Agent for polymers and resins to improve mechanical strength and chemical resistance.
• Hair and Skin Care Formulations as a conditioning and film-forming agent in personal care products.
• Catalyst Support and Immobilization Matrix in chemical synthesis and enzymatic processes.
• Dye Fixative and Print Paste Additive in the textile industry to improve color fastness and print quality.

Basic Information

Product Name	Polyethyleneimine
CAS No.	26913-06-4
Molecular Formula	(C2H5N)n
Molecular Weight	Variable (Typically 600 - 1,000,000 g/mol)
Synonyms	PEI; Polyaziridine; Poly(ethylenimine); Poly(iminoethylene); Poly(ethylene imine); Aziridine, homopolymer; Ethylenimine polymer; Polymin; Lupasol (trade name); Epomin (trade name)
EINECS	248-102-3

Quality Control

Our Polyethyleneimine is manufactured under strict quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analytical testing, including assay, viscosity, pH, and molecular weight distribution analysis. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

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); ensure containers are sealed immediately after use to prevent absorption of atmospheric moisture and carbon dioxide.

Specification

Item	Specification
Appearance	Viscous, clear to slightly yellow liquid
Identification (IR)	Conforms
Assay (Nitrogen Content)	≥ 30% (w/w)
Viscosity (25°C)	Contact for details
pH (10% solution)	10.0 - 12.0
Water Content	≤ 1.0%
Molecular Weight (Average)	Contact for details (Various grades available)

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