1,4,5,8-Naphthalenetetracarboxylic dianhydride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 81-30-1 |
| Product name | 1,4,5,8-Naphthalenetetracarboxylic dianhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeReagent 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 1,4,5,8-Naphthalenetetracarboxylic dianhydride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,4,5,8-Naphthalenetetracarboxylic dianhydride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1,4,5,8-Naphthalenetetracarboxylic dianhydride
| Industry | Application | Process |
|---|---|---|
| Chemical Synthesis | Intermediate for Organic Semiconductor Materials | Used to synthesize n-type organic semiconductor materials via condensation reactions to produce high-performance electron-transport materials |
| Materials Science | Dye and Pigment Synthesis | As a polycyclic aromatic hydrocarbon derivative, incorporated into high-performance dye structures to enhance photostability and color strength |
| Polymer Chemistry | Polyimide Precursor | Undergoes polymerization with diamine compounds to yield high-temperature-resistant polyimides suitable for thin-film and engineering plastic production |
| Analytical Chemistry | Fluorescent Probe Synthesis | Employed in the preparation of fluorescent sensors for metal ions or biomolecules, leveraging its conjugated structure for signal response |
| Nanotechnology | Building Block for Graphene Analogues | Participates in on-surface synthesis of graphene nanoribbons for nanoelectronic device development |
Manufacturing Quality Control of 1,4,5,8-Naphthalenetetracarboxylic 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. |
| Appearance | Visual Inspection | Assessment of physical state and color against reference standard under controlled lighting conditions. |
| Melting Point | Capillary Melting Point Determination | Measurement of temperature range at which solid transitions to liquid using calibrated capillary apparatus. |
| Loss on Drying | Gravimetric (Thermogravimetric) | Mass loss measured after drying sample at 105 C for 2 hours under atmospheric pressure. |
| Residue on Ignition | Gravimetric (Sulfated Ash) | Residue mass determined after high-temperature incineration (700-800 C) following sulfuric acid treatment. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride ions using conductivity detection after aqueous extraction. |
| Sulfate Impurity | Turbidimetric Method | Formation of barium sulfate precipitate in acidic medium; quantified by light scattering measurement. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption spectroscopy after acid digestion and matrix-matched calibration. |
| Iron Impurity | ICP-OES | Multi-element quantification via plasma excitation and optical emission detection after microwave digestion. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration based on iodine-sulfur dioxide reaction with water. |
| Organic Volatile Impurities | GC-FID | Separation by gas chromatography and detection by flame ionization for residual solvents. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to determine size distribution of dry powder sample. |
Technical Specifications of 1,4,5,8-Naphthalenetetracarboxylic dianhydride
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 275–279 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
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 1,4,5,8-Naphthalenetetracarboxylic dianhydride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,4,5,8-Naphthalenetetracarboxylic dianhydride
Safety Information of 1,4,5,8-Naphthalenetetracarboxylic dianhydride
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 1,4,5,8-Naphthalenetetracarboxylic dianhydride
Industrial 1,4,5,8-Naphthalenetetracarboxylic 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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