Polyethyleneimine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 106899-94-9 |
| Product name | Polyethyleneimine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Polyethyleneimine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Polyethyleneimine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Polyethyleneimine
| Industry | Application | Process |
|---|---|---|
| Water Treatment | Flocculant/Coagulant | Applied in wastewater or paper mill effluent treatment to aggregate suspended particles via charge neutralization and adsorption-bridging mechanisms, facilitating sedimentation |
| Papermaking | Retention Aid/Drainage Aid/Wet-Strength Agent | Added to pulp to improve retention of fines and fillers, enhance dewatering performance, or increase wet tensile strength of paper |
| Textile Dyeing & Printing | Formaldehyde-Free Fixative/Dyeing Auxiliary | Applied via pad-dry-cure or immersion processes; its cationic nature binds with anionic dyes to improve color fastness and reduce effluent color intensity |
| Biopharmaceuticals | Transfection Reagent/Gene Delivery Vector | Forms complexes with DNA/RNA through electrostatic interactions to protect nucleic acids and facilitate cellular uptake for gene transfection |
| Inks & Adhesives | Adhesion Promoter/Adhesive | Incorporated into ink or adhesive formulations to improve adhesion and bond strength on substrates—particularly plastics and glass |
| Electronics | Photoresist Additive/Metal Electroplating | Used as a photoresist additive in semiconductor fabrication or as a metal surface treatment agent in PCB manufacturing |
| Personal Care | Hair Conditioner | Adsorbs onto hair surfaces in shampoo formulations to form a protective film, delivering antistatic and smoothing benefits |
Manufacturing Quality Control of Polyethyleneimine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (PEI content) | Acid-base titration | Quantifies primary, secondary, and tertiary amine groups by back-titration with standardized HCl after excess acid addition. |
| pH (1% aqueous solution) | Potentiometric pH measurement | Measures hydrogen ion activity in dilute aqueous PEI solution using calibrated pH electrode. |
| Viscosity (40% aqueous solution) | Capillary viscometry | Determines kinematic viscosity by measuring flow time of solution through calibrated capillary tube under gravity. |
| Molecular Weight Distribution | Size Exclusion Chromatography (SEC/GPC) | Separates polymer chains by hydrodynamic volume in solution; calibration with polyethylene oxide standards. |
| Water Content | Karl Fischer titration | Electrochemical titration quantifying water via iodine-sulfur dioxide reaction in anhydrous methanol medium. |
| Heavy Metals (Pb, Cd, Hg, Cr) | ICP-OES | Multi-element detection based on characteristic atomic emission spectra after microwave-assisted acid digestion. |
| Chloride Ion Content | Ion Chromatography (IC) | Separation and quantification of Cl- anions using ion-exchange column and conductivity detection. |
| Color (APHA) | Visual comparison or spectrophotometric measurement | Compares sample color to platinum-cobalt standard scale at 455 nm absorbance or visual matching. |
| Residual Monomers (e.g., ethylenimine) | Gas Chromatography (GC-FID) | Separates and detects volatile monomers using flame ionization detection after headspace or solvent extraction. |
| Ash Content | Gravimetric analysis | Measures non-volatile residue mass after high-temperature (550-600 C) combustion in muffle furnace. |
| Density (25 C) | Digital densitometry | Determines mass per unit volume using oscillating U-tube principle with temperature-controlled sample. |
| Bioburden | Membrane filtration and plate count | Quantifies viable microorganisms by filtration, membrane transfer to nutrient agar, and colony enumeration after incubation. |
Technical Specifications of Polyethyleneimine
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow viscous liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Color (APHA/Pt-Co) | <=100 |
| Odor | Characteristic amine-like odor |
| Refractive Index (n20/D) | 1.495–1.515 |
| Relative Density (20°C/25°C) | 1.02–1.06 g/cm³ |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Polyethyleneimine
| CAS/Product ID | *Required fields | |
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Packaging of Polyethyleneimine
Industrial Polyethyleneimine Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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