3,3',4,4'-Biphenyltetracarboxylic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 22803-05-0 |
| Product name | 3,3',4,4'-Biphenyltetracarboxylic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Electronic GradeMaterial GradeReagent GradeIndustrial GradeSpecialty 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 3,3',4,4'-Biphenyltetracarboxylic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3,3',4,4'-Biphenyltetracarboxylic acid 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'-Biphenyltetracarboxylic acid
| Industry | Application | Process |
|---|---|---|
| Polymers | Monomer for synthesizing polyimide resins | Used in condensation polymerization with diamine compounds to produce polyimide |
| Electronics | Production of high-performance insulating materials | Serves as a key raw material for synthesizing polyimide films used in flexible printed circuit boards and high-temperature insulation layers |
| Chemicals | Synthesis of other aromatic dianhydrides | Converted into functionalized dianhydride derivatives via oxidation or acylation reactions |
| Fine Chemicals | Synthesis of organic optoelectronic materials | Employed as a precursor for organic semiconductor materials in devices such as organic light-emitting diodes (OLEDs) |
| Research & Development | Synthesis of novel polymeric materials | Applied in laboratory-scale development of new polymer and functional materials |
Manufacturing Quality Control of 3,3',4,4'-Biphenyltetracarboxylic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV absorbance at 254 nm. |
| Moisture Content | Karl Fischer titration | Electrochemical titration where iodine reacts stoichiometrically with water in a methanol-based solvent system. |
| Residue on Ignition | Gravimetric analysis | Measurement of non-volatile inorganic residue after high-temperature ashing at 700-800 C. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element detection via plasma-induced atomic emission; quantification based on characteristic emission line intensities. |
| Chloride Impurity | Ion chromatography | Separation of anions on a suppressor-type column followed by conductivity detection. |
| Sulfate Impurity | Barium sulfate gravimetric method | Precipitation of sulfate as BaSO4 under controlled acidic conditions, followed by drying and weighing. |
| Iron Content | AAS (Flame) | Atomic absorption measurement of ground-state Fe atoms in an air-acetylene flame at 248.3 nm. |
| pH of Aqueous Slurry | Potentiometric pH measurement | Determination using a calibrated glass electrode in a saturated aqueous suspension (1% w/v). |
| Melting Point | Capillary melting point apparatus | Thermal transition observed visually or automatically as the temperature range over which solid transforms to liquid. |
| Organic Volatile Impurities | Headspace GC-FID | Volatile compounds partitioned into headspace gas, separated by capillary GC, and detected by flame ionization. |
| Particle Size Distribution | Laser diffraction | Analysis of light scattering pattern from dispersed particles to calculate size distribution based on Mie theory. |
| Bulk Density | ASTM D1895 method A | Mass per unit volume of material poured freely into a graduated cylinder under standardized conditions. |
Technical Specifications of 3,3',4,4'-Biphenyltetracarboxylic acid
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 285–290 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Acid Value (mg KOH/g) | 650–670 mg KOH/g |
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 3,3',4,4'-Biphenyltetracarboxylic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 3,3',4,4'-Biphenyltetracarboxylic acid
Safety Information of 3,3',4,4'-Biphenyltetracarboxylic acid
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 3,3',4,4'-Biphenyltetracarboxylic acid
Industrial 3,3',4,4'-Biphenyltetracarboxylic acid 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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