2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 36978-41-3 |
| Product name | 2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Electronic GradeMaterial 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 2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE
| Industry | Application | Process |
|---|---|---|
| Polymers | Synthesis of polyimide (PI) resins and films | Used as a dianhydride monomer in condensation polymerization with diamine monomers |
| Electronics | Substrate material for flexible printed circuit boards (FPCs) | Converted into high-temperature-resistant films via polyimide precursor coating and imidization |
| Semiconductor Packaging | Component of advanced packaging materials | Used to synthesize polyimide coatings with low dielectric constant and high thermal resistance |
| Optical Materials | Alignment layer material for liquid crystal displays (LCDs) | Molecular alignment control achieved through polyimide synthesis and directional coating |
| Aerospace | High-temperature-resistant composites and adhesives | Serves as a raw material for polyimide matrix resins, cured at elevated temperatures |
Manufacturing Quality Control of 2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by reversed-phase HPLC with UV detection at 254 nm using external standard calibration. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content based on the reaction of iodine with sulfur dioxide in a methanol-pyridine solvent system. |
| Residue on Ignition | Gravimetric Analysis | Determination of non-volatile inorganic impurities by high-temperature ashing followed by weighing of residual mass. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride anions using suppressed conductivity detection after anion exchange. |
| Sulfate Impurity | Ion Chromatography (IC) | Separation and quantification of sulfate anions using suppressed conductivity detection after anion exchange. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element detection of heavy metals by inductively coupled plasma optical emission spectrometry following acid digestion. |
| Iron Content | ICP-OES | Quantification of Fe by atomic emission intensity measurement in argon plasma after sample digestion. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Comparison of sample solution color to APHA platinum-cobalt standards or measurement of absorbance at 430 nm. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid-to-liquid phase transition occurs under controlled heating. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separation and quantification of residual solvents and volatile organics using flame ionization detection. |
| Acid Number | Acid-Base Titration | Neutralization of acidic anhydride groups with standardized potassium hydroxide solution using phenolphthalein indicator. |
| Particle Size Distribution | Laser Diffraction | Analysis of particle size distribution by measuring angular variation in laser light scattering intensity. |
Technical Specifications of 2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 275-280°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Conforms to reference spectrum |
| 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 2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE
Safety Information of 2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,3,3',4'-BIPHENYL TETRACARBOXYLIC DIANHYDRIDE
Industrial 2,3,3',4'-BIPHENYL TETRACARBOXYLIC 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.
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