3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 2540-99-0 |
| Product name | 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Electronic GradeMaterial Grade |
| Packaging | 25KG/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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE
| Industry | Application | Process |
|---|---|---|
| Polymers | Synthesis of polyimide resins and films | Used to prepare high-performance polyimides via condensation polymerization with diamines (e.g., 4,4′-oxydianiline) in polar aprotic solvents (e.g., NMP, DMAC), followed by thermal imidization |
| Electronic Packaging | Substrate for flexible printed circuit boards (FPCs) | Processed into high-temperature-resistant, low-dielectric-constant insulating films via solution casting and gradient-temperature imidization |
| Aerospace | Component of high-temperature structural adhesives | Employed as an anhydride-type curing agent for epoxy resins or in combination with aromatic diamines in high-temperature adhesive systems, thermally cured at 150–250 °C |
| Optical Materials | Precursor for transparent polyimides | Copolymerized with low-dispersion diamines and subjected to controlled thermal imidization for flexible OLED display substrates and optical compensation films |
Manufacturing Quality Control of 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reverse-phase HPLC with UV detection at 254 nm, calibrated against certified reference standard. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in pyridine-methanol solvent system. |
| Residue on Ignition | Gravimetric Analysis | Weight loss measurement after high-temperature ashing to determine inorganic impurities. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride ions using anion-exchange column with conductivity detection. |
| Sulfate Impurity | Ion Chromatography (IC) | Separation and quantification of sulfate ions using anion-exchange column with conductivity detection. |
| Heavy Metals (Pb, Cd, Cr, Hg) | ICP-OES | Multi-element detection by plasma excitation and optical emission spectroscopy after acid digestion. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed as solid-to-liquid phase change under controlled heating rate. |
| Acid Number | Acid-Base Titration | Neutralization of acidic groups with standardized KOH solution using phenolphthalein indicator. |
| Organic Volatile Impurities | GC-FID | Separation and detection of residual solvents or low-MW organics using flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to determine size distribution in suspended powder. |
| Color (APHA) | Visual Comparison or Spectrophotometer | Comparison of sample solution color against platinum-cobalt standards or measurement at 455 nm. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light induced by chiral centers in solution. |
Technical Specifications of 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.5% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 275-280°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| 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
|
|
Download COA of 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE
Safety Information of 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE
Industrial 3,3',4,4'-DIPHENYLSULFONETETRACARBOXYLIC DIANHYDRIDE 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply