2,6-NAPHTHALENEDICARBOXYLIC ACID Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 1141-38-4 |
| Product name | 2,6-NAPHTHALENEDICARBOXYLIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for 2,6-NAPHTHALENEDICARBOXYLIC ACID
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,6-NAPHTHALENEDICARBOXYLIC ACID Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,6-NAPHTHALENEDICARBOXYLIC ACID
| Industry | Application | Process |
|---|---|---|
| High-performance polymers | Production of polyethylene naphthalate (PEN) resin | Esterification with ethylene glycol, followed by polycondensation to produce PEN |
| High-performance polymers | Preparation of polybutylene naphthalate (PBN) resin | Polycondensation with 1,4-butanediol |
| Coatings and resins | Synthesis of specialty engineering plastics such as polyimides and polyarylates | Used as a dicarboxylic acid monomer in polycondensation reactions |
| Liquid crystal materials | Preparation of thermotropic liquid crystal polymers (LCPs) | Copolycondensation with aromatic diamines or diols |
| Functional materials | Preparation of derivatives such as naphthalene diepoxides | Modification via epoxidation and other reactions |
| Intermediates | Synthesis of intermediates for dyes, pharmaceuticals, and agrochemicals | Further derivatization via sulfonation, halogenation, and other reactions |
Manufacturing Quality Control of 2,6-NAPHTHALENEDICARBOXYLIC ACID
| Test Item | Common Test Methods | Method Overview |
|---|---|---|
| Purity | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column with water-organic solvent (e.g., methanol or acetonitrile) as the mobile phase, and UV detection (typically 220–260 nm). The main component content is calculated by peak area normalization. |
| Assay | Acid-Base Titration / HPLC External Standard Method | Acid-base titration utilizes the carboxylic acid functional group reacting with a standard alkaline solution, using an indicator such as phenolphthalein; the HPLC external standard method quantifies by comparing with a reference standard of known concentration. |
| Melting Point | Melting Point Apparatus Method | Determines the temperature range from initial to complete melting using capillary tubes or digital melting point apparatus, following pharmacopoeial or standard operating procedures to assess purity and crystalline form consistency. |
| Loss on Drying | Thermogravimetric Analysis (TGA) / Oven Drying Method | Samples are dried at a specified temperature (e.g., 105°C) until constant weight is achieved; the percentage weight loss is calculated to reflect moisture and volatile impurity content. |
| Residue on Ignition (Ash Content) | High-Temperature Incineration Method | The sample is completely carbonized and ashed in a muffle furnace at high temperature (typically 700–800°C); the remaining inorganic residue is weighed to evaluate levels of inorganic impurities. |
| Related Substances (Impurities) | HPLC Gradient Elution Method | A gradient elution program separates the main peak from potential impurity peaks. Coupled with mass spectrometry (LC-MS), this method can assist in identifying impurity structures, used for controlling synthetic by-products or degradation products. |
| pH (aqueous solution) | pH Meter Method | Aqueous suspension or solution of defined concentration is prepared, and its acidity or alkalinity is measured using a calibrated pH meter, indirectly reflecting free acid content and influence of impurities. |
| Appearance and Color | Visual Color Comparison Method | Observe the sample's color and physical state (typically white to off-white crystalline powder) under standard lighting conditions, comparing with standard color solutions or reference materials. |
| Water Content | Karl Fischer Titration | Utilizes the quantitative reaction between Karl Fischer reagent and water in the sample. Water content is determined by coulometric or volumetric titration, suitable for precise control of trace moisture. |
Technical Specifications of 2,6-NAPHTHALENEDICARBOXYLIC ACID
| Test Item | Specification |
|---|---|
| Appearance | White to light yellow crystalline powder |
| 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% |
| Acid Value (mg KOH/g) | 420–440 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
|
|
Download COA of 2,6-NAPHTHALENEDICARBOXYLIC ACID
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,6-NAPHTHALENEDICARBOXYLIC ACID
Safety Information of 2,6-NAPHTHALENEDICARBOXYLIC ACID
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,6-NAPHTHALENEDICARBOXYLIC ACID
Industrial 2,6-NAPHTHALENEDICARBOXYLIC 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply