China Factory Direct
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| CAS number | 39660-17-8 |
| Product name | Dimethylamine-epichlorohydrin copolymer |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeCosmetic GradeFood 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Water Treatment | Coagulant | Ring-opening polymerization of epichlorohydrin with dimethylamine under alkaline conditions to produce a cationic polymeric flocculant |
| Pulp & Paper | Strength Enhancer | Copolymerization of epichlorohydrin with dimethylamine to produce a cationic additive for paper strength enhancement |
| Cosmetics | Humectant | Applied as a humectant and conditioning agent in cosmetic formulations, leveraging its cationic properties |
| Oilfield Chemistry | Enhanced Oil Recovery (EOR) Agent | Applied to improve oil recovery through the surfactant behavior and adhesion properties of the copolymer |
| Pharmaceuticals | Drug Delivery Vehicle | Used as a controlled-release matrix, enabling sustained drug release via the structural characteristics of the copolymer |
| Detection Item | Common Analytical Method | Method Overview |
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| Active Content (as EPI-DMA) | Acid-Base Titration | Quantifies active amine groups by titration with standardized HCl solution using methyl orange indicator. |
| Viscosity | Rotational Viscometry | Measures resistance to flow under controlled shear rate and temperature using a calibrated rotational viscometer. |
| pH | Potentiometric pH Measurement | Determines hydrogen ion activity in aqueous solution using a calibrated glass electrode and reference electrode. |
| Density | Oscillating U-tube Densitometry | Calculates density from the resonant frequency of a vibrating U-shaped tube filled with sample. |
| Chloride Ion Content | Potentiometric Titration with AgNO3 | Quantifies free chloride ions via argentometric titration using silver nitrate and a silver indicator electrode. |
| Water Content | Karl Fischer Coulometric Titration | Electrochemically determines trace water based on stoichiometric iodine generation and reaction with water. |
| Molecular Weight Distribution | Gel Permeation Chromatography (GPC) | Separates polymer chains by hydrodynamic volume in solution and compares retention times to polystyrene standards. |
| Residual Monomers (EPI, DMA) | Gas Chromatography (GC-FID) | Separates and quantifies volatile monomers using capillary GC column and flame ionization detection. |
| Heavy Metals (Pb, Cd, Hg, Cr) | ICP-OES | Simultaneously quantifies trace metals after acid digestion by measuring element-specific atomic emission intensities. |
| Total Organic Carbon (TOC) | High-Temperature Catalytic Oxidation | Oxidizes organic carbon to CO2 at 680-1000 C and measures CO2 concentration by NDIR detection. |
| Appearance | Visual Inspection | Assesses physical state, color, and clarity against standard white background under controlled lighting conditions. |
| Ash Content | Gravimetric Analysis | Determines inorganic residue mass after high-temperature combustion (550-600 C) and cooling in desiccator. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Refractive Index (n20/D) | 1.495–1.505 |
| Relative Density (20°C/25°C) | 1.08–1.12 g/cm³ |
| Color (APHA/Pt-Co) | <=100 |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.