Description

Polyethylene-Polyamines CAS NO 68131-73-7 are a versatile class of aliphatic amines characterized by multiple amino groups linked by ethylene bridges. This chemical structure is critical for applications requiring high reactivity, strong chelation, and effective cross-linking capabilities. It serves as a fundamental building block and intermediate for manufacturers in sectors demanding robust performance chemicals, such as epoxy curing agents, chelating resins, and corrosion inhibitors.

Application

• Epoxy Curing Agent: A key component in formulating high-performance, room-temperature curing epoxy systems for coatings, adhesives, and composites.
• Chelating Resin Synthesis: Acts as a functional monomer for producing ion-exchange and chelating resins used in water treatment and metal recovery.
• Corrosion Inhibitor Intermediate: Used in the synthesis of filming amines and other compounds that protect metal surfaces in industrial water systems and fuels.
• Paper Wet-Strength Resin: Serves as a cross-linking agent in the production of polyamide-epichlorohydrin (PAE) resins, which enhance the wet strength of paper and cardboard.
• Textile & Leather Auxiliary: Employed in the manufacture of softening agents, dye-fixing agents, and other functional finishes.
• Pharmaceutical & Agrochemical Intermediate: Provides a polyfunctional amine backbone for synthesizing various active pharmaceutical ingredients (APIs) and pesticide compounds.
• Fuel & Lubricant Additive: Used as a precursor for dispersants and detergents that improve the performance and cleanliness of engine oils and fuels.
• Polymer Modification: Functions as a chain extender or cross-linker for polyurethanes and other polymers to modify their physical properties.

Basic Information

Item	Details
Product Name	Polyethylene-Polyamines
CAS No.	68131-73-7
Molecular Formula	Typically C2nH4n+2Nn+2 (for a homologous series)
Molecular Weight	Varies by specific oligomer (e.g., Triethylenetetramine: 146.23 g/mol)
Synonyms	Polyethylenepolyamines; Polyalkylene Polyamines; Ethylene Amine Oligomers; Poly(ethylenimine) precursors; TETA (Triethylenetetramine); TEPA (Tetraethylenepentamine); Pentaethylenehexamine; N-(2-Aminoethyl)-1,2-ethanediamine homologues
EINECS	Contact for details

Quality Control

Our Polyethylene-Polyamines are produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with relevant industry specifications. Key parameters such as amine value, total nitrogen content, and individual oligomer distribution are monitored. A Certificate of Analysis (COA) detailing purity, assay, and physical properties is provided with every shipment to guarantee traceability and quality assurance for your processes.

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) and should be kept under a dry inert atmosphere (e.g., nitrogen) after opening to prevent absorption of moisture and carbon dioxide, which can affect product quality. Keep away from strong oxidizers and acids.

Specification

Item	Specification
Appearance	Clear, viscous, yellow to amber liquid
Identification (IR)	Conforms
Assay (Total Amines)	≥ 95.0 %
Water Content (KF)	≤ 1.0 %
Color (Gardner)	≤ 10
Specific Gravity (20°C)	1.00 - 1.05
Viscosity (25°C)	Contact for details
Primary & Secondary Amine Value	Contact for details

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