Polyethylenimine, ethylenediamine branched
Polyethylenimine, ethylenediamine branched (CAS 25987-06-8), identified by its linear formula H(NHCH2CH2)nNH2, is a hydrophilic, branched polymer. It exhibits an average molecular weight of approximately 600 g/mol (Mn). This versatile cationic polymer is widely employed as an adhesion promoter, in water treatment as a flocculant, and in the paper and textile industries. Its chelating properties also make it valuable for scavenging aldehydes and oxides.
- IUPAC
- PEI
- Synonyms
- Polyethyleneimine, branchedPEIEthyleneimine polymer, branched

Water Treatment
Utilized as a flocculant and chelating agent in water purification processes to remove suspended solids and metal ions.
Adhesives and Coatings
Acts as an adhesion promoter and lamination primer, enhancing the bond strength between different materials in adhesive formulations and coatings.
Paper Industry
Employed as a fixative agent and retention aid, improving dye fixation and the retention of fine particles during paper manufacturing.
Detergents and Cosmetics
Serves as a cationic dispersant and stability enhancer in detergent formulations and as a fixative agent in cosmetic products.
Chemical Scavenging
Functions as an effective scavenger for aldehydes and oxides in various chemical processes, ensuring product purity and process efficiency.
| Linear formula | H(NHCH2CH2)nNH2 |
|---|---|
| Density | 1.050 g/mL at 25 °C |
| Refractive index | n20/D 1.5240 |
| Application | Detergents, adhesives, water treatment, printing inks, dyes, cosmetics, and paper industry, adhesion promoter, lamination primer, fixative agent, flocculant, cationic dispersant, stability enhancer, surface activator, chelating agent, scavenger for aldehydes and oxides. |


Hazard statements
- H302Harmful if swallowed
- H317May cause an allergic skin reaction
- H318Causes serious eye damage
- H412Harmful to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | >110 °C / >230 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41-43-52/53 |
| Safety statements (S) | 26-36/37/39-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Mol Wt | average Mn ~600 by GPCaverage Mw ~800 by LS |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Polyethylenimine, ethylenediamine branched used for?
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Polyethylenimine, ethylenediamine branched (CAS 25987-06-8) is used in detergents, adhesives, water treatment, printing inks, dyes, cosmetics, and the paper industry. It functions as an adhesion promoter, lamination primer, fixative agent, flocculant, cationic dispersant, stability enhancer, surface activator, chelating agent, and scavenger for aldehydes and oxides.
What is the CAS number and formula for Polyethylenimine, ethylenediamine branched?
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The CAS number is 25987-06-8, and the linear formula is H(NHCH2CH2)nNH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Polyethylenimine, ethylenediamine branched with an average Mn of ~600 and Mw of ~800. This product is not represented as USP, BP, EP, or other pharmacopoeia grades and is suitable for research and technical applications.
How should Polyethylenimine, ethylenediamine branched be handled safely?
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Handling requires caution due to hazards including H302 (Harmful if swallowed), H317 (May cause an allergic skin reaction), H318 (Causes serious eye damage), and H412 (Harmful to aquatic life with long lasting effects). Use appropriate personal protective equipment, including eyeshields, faceshields, and gloves, and ensure adequate ventilation. Refer to the Safety Data Sheet for detailed guidance.
How is Polyethylenimine, ethylenediamine branched packed, shipped, and exported?
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Tech Serve Solutions packs, ships, and exports chemicals adhering to all relevant international and domestic regulations for hazardous materials. Specific packaging details will be provided based on order size and destination.
How can I request a sample or quote for Polyethylenimine, ethylenediamine branched?
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To request a sample or a quote, please contact our sales department via the website or directly by phone, providing your contact details and the product information (CAS 25987-06-8).
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