1,4,5,8-Naphthalenetetracarboxylic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 128-97-2 |
| Product name | 1,4,5,8-Naphthalenetetracarboxylic acid |
| 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 acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,4,5,8-Naphthalenetetracarboxylic acid 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 acid
| Industry | Application | Process Description |
|---|---|---|
| Chemical Industry | Synthesis of dyes and pigments | Used as an organic synthetic intermediate for the preparation of high-performance dyes and pigments. |
| Materials Science | Preparation of functional materials | Applied in the synthesis of organic functional materials with specialized optoelectronic properties. |
| Environmental Science | Analysis and treatment of pollutants | Used as a certified reference material for detecting organic pollutants in environmental samples. |
| Analytical Chemistry | Analytical reagent | Used as a standard or derivatization reagent in chromatographic analysis. |
| Research | New material development | Applied in the design and synthesis of metal–organic framework (MOF) materials. |
Manufacturing Quality Control of 1,4,5,8-Naphthalenetetracarboxylic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by peak area comparison against certified reference standard using reversed-phase chromatography and UV detection at 254 nm. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration based on iodine consumption in a reaction with water in anhydrous methanol/pyridine medium. |
| Residue on Ignition | Gravimetric Analysis | Measurement of non-volatile inorganic residue after high-temperature ashing (700-800 C) and cooling in desiccator. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of toxic metals after acid digestion, using plasma excitation and optical emission detection. |
| Chloride Impurity | Ion Chromatography | Separation and conductivity detection of chloride anions in aqueous extract using anion-exchange column and suppressed conductivity. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitation of sulfate as BaSO4 in acidic medium followed by filtration, drying, and weighing of the precipitate. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, observed visually through capillary tube under controlled heating rate. |
| Organic Volatile Impurities | GC-FID | Separation and flame ionization detection of residual solvents and low-MW organics after headspace or direct injection. |
| Iron Content | AAS (Flame) | Atomic absorption measurement of iron after acid digestion and dilution, using characteristic absorption at 248.3 nm. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity pattern to calculate size distribution of dry or dispersed particles. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Electrode-based measurement of hydrogen ion activity in a defined suspension (e.g., 1% w/v in water). |
| Solubility in Common Solvents | Visual Observation / Filtration | Qualitative or semi-quantitative assessment of complete dissolution in specified solvents (e.g., DMF, acetone) at defined temperature and concentration. |
Technical Specifications of 1,4,5,8-Naphthalenetetracarboxylic acid
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (HPLC, containing anhydrides) |
| Melting Point | 285–290 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| 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 1,4,5,8-Naphthalenetetracarboxylic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,4,5,8-Naphthalenetetracarboxylic acid
Safety Information of 1,4,5,8-Naphthalenetetracarboxylic acid
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 1,4,5,8-Naphthalenetetracarboxylic acid
Industrial 1,4,5,8-Naphthalenetetracarboxylic 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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