4,4'-Oxydianiline Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 101-80-4 |
| Product name | 4,4'-Oxydianiline |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic 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 4,4'-Oxydianiline
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-Oxydianiline Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,4'-Oxydianiline
| Industry | Application | Process |
|---|---|---|
| Polymers | Monomer for polyimide resins, used in high-temperature-resistant films, insulating varnishes, and composites | Condensation polymerization with dianhydrides |
| Electronics | Manufacturing flexible printed circuit boards (FPCs), insulating materials, and cable coatings | High-temperature polymerization, coating, and molding |
| Aerospace | Production of high-temperature-resistant adhesives and composites | Polymer synthesis and lamination |
| Fibers | Production of heat-resistant fibers (e.g., aramid fibers) | Solution spinning and thermal treatment |
| Coatings | Raw material for high-performance insulating varnishes and corrosion-resistant coatings | Dissolution, mixing, and curing reactions |
Manufacturing Quality Control of 4,4'-Oxydianiline
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 254 nm. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via reaction of iodine with sulfur dioxide in the presence of water and a base. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, indicating purity and identity by comparison to reference value (187-190 C). |
| Residue on Ignition | Gravimetric Analysis | Measurement of non-volatile inorganic residue after high-temperature ashing (700-800 C) and weighing. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of trace metals after acid digestion, based on element-specific atomic emission intensities. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Titration using silver nitrate with silver indicator electrode; endpoint detected by potential change due to AgCl precipitation. |
| Iron Content | AAS | Atomic absorption spectroscopy measurement of iron concentration after sample acid digestion and nebulization into flame. |
| Appearance (Color and Clarity) | Visual Inspection | Comparison of sample solution (in specified solvent, e.g., DMF) against standard color scale (e.g., APHA) under controlled lighting. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents and volatile impurities using gas chromatography with flame ionization detection. |
| Sulfated Ash | Gravimetric Analysis | Determination of inorganic residue after charring with sulfuric acid followed by incineration at 700 C and weighing. |
| pH of Aqueous Suspension | pH Meter | Measurement of pH in a defined suspension (e.g., 1% w/v in water) using calibrated pH electrode. |
| Particle Size Distribution | Laser Diffraction | Analysis of particle size distribution based on angular variation of laser light scattering intensity from dispersed particles. |
Technical Specifications of 4,4'-Oxydianiline
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 186–189°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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 4,4'-Oxydianiline
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-Oxydianiline
Packaging of 4,4'-Oxydianiline
Industrial 4,4'-Oxydianiline 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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