2,3-Naphthalenedicarboxylic Anhydride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 716-39-2 |
| Product name | 2,3-Naphthalenedicarboxylic Anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeElectronic 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) |
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Documents We Provide for 2,3-Naphthalenedicarboxylic Anhydride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,3-Naphthalenedicarboxylic Anhydride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,3-Naphthalenedicarboxylic Anhydride
| Industry | Application | Process |
|---|---|---|
| High-performance polymers | Synthesis of polyimide (PI) monomers | Condensation polymerization with aromatic diamines to produce high-temperature-resistant, high-mechanical-strength polyimide films or resins |
| Electronic materials | Production of flexible display substrates and insulating films | Used as a key monomer in solution-based or chemical imidization processes to fabricate transparent or colored polyimides |
| Aerospace | Component of high-temperature-resistant composite materials | Copolymerized with other monomers to form thermally stable polyimides for structural parts or coatings |
| Dyes and pigments | Synthesis of naphthalene-based dye intermediates | Acylated and condensed to construct chromophore structures |
| Optoelectronic materials | Precursor for organic semiconductors or fluorescent materials | Functionalized to incorporate electron-transporting or luminescent groups for use in OLEDs or sensors |
Manufacturing Quality Control of 2,3-Naphthalenedicarboxylic Anhydride
| 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. |
| Melting Point | Capillary melting point apparatus | Thermal transition temperature measured by observing the range over which solid-to-liquid phase change occurs. |
| Moisture Content | Karl Fischer titration | Volumetric or coulometric titration measuring water content via stoichiometric reaction with iodine and sulfur dioxide in pyridine/methanol medium. |
| Residue on Ignition | Gravimetric analysis | Mass of non-volatile inorganic residue remaining after high-temperature incineration at 700-800 C. |
| Chloride Impurity | Ion chromatography (IC) | Separation and quantification of chloride anions using ion-exchange column and conductivity detection. |
| Sulfate Impurity | Barium sulfate gravimetry | Precipitation of sulfate as BaSO4 followed by filtration, drying, and weighing of the precipitate. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after acid digestion by measuring absorbance of ground-state atoms in flame or graphite furnace. |
| Iron Content | ICP-OES | Multi-element detection via measurement of characteristic atomic emission lines after plasma atomization and excitation. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separation and quantification of residual solvents or low-boiling impurities using capillary column and flame ionization detection. |
| Particle Size Distribution | Laser diffraction | Analysis of scattered laser light intensity pattern to determine volume-based particle size distribution. |
| Color (APHA) | Visual comparison or spectrophotometric measurement | Evaluation of yellowish discoloration by matching sample solution absorbance at 430 nm to APHA platinum-cobalt standard scale. |
| Acid Value | Acid-base titration with NaOH | Neutralization of acidic functional groups (e.g., anhydride hydrolysis products) using standardized sodium hydroxide solution and phenolphthalein indicator. |
Technical Specifications of 2,3-Naphthalenedicarboxylic Anhydride
| Test Item | Specification |
|---|---|
| Appearance | White to gray or brown crystalline powder |
| Purity | >=98.5% (GC-MS) |
| Melting Point | 273–277°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
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-Naphthalenedicarboxylic Anhydride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,3-Naphthalenedicarboxylic Anhydride
Safety Information of 2,3-Naphthalenedicarboxylic Anhydride
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,3-Naphthalenedicarboxylic Anhydride
Industrial 2,3-Naphthalenedicarboxylic Anhydride 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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