2,7-Naphthalenedisulfonic acid disodium salt Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 1655-35-2 |
| Product name | 2,7-Naphthalenedisulfonic acid disodium salt |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical 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) |
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 2,7-Naphthalenedisulfonic acid disodium salt
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,7-Naphthalenedisulfonic acid disodium salt Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,7-Naphthalenedisulfonic acid disodium salt
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Production of dye intermediates | Prepared via sulfonation |
| Pharmaceutical Industry | Synthesis of pharmaceutical intermediates | Prepared via sulfonation |
| Analytical Chemistry | Used as an analytical reagent | Applied in qualitative and quantitative analysis of specific compounds |
Manufacturing Quality Control of 2,7-Naphthalenedisulfonic acid disodium salt
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantification based on absorbance at characteristic wavelength using calibrated standard curve. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction. |
| Sodium Content | Flame Photometry | Measurement of sodium-specific emission intensity in flame excited by sample aerosol. |
| Sulfate Impurity | Ion Chromatography (IC) | Separation and quantification of sulfate anions using ion-exchange column and conductivity detection. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Titration using silver nitrate with chloride-selective electrode endpoint detection. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Multi-element detection by measuring atomic emission intensities after plasma atomization and excitation. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Determination of hydrogen ion activity using calibrated glass electrode in 1% w/v aqueous solution. |
| Water Insolubles | Gravimetric Analysis | Filtration of aqueous solution followed by drying and weighing of residue. |
| Organic Impurities (Related Substances) | HPLC with UV Detection | Separation on reversed-phase column and quantification using UV absorbance relative to reference standards. |
| Iron Content | Colorimetric Method (1,10-Phenanthroline) | Formation of orange-red Fe(II)-phenanthroline complex measured spectrophotometrically. |
| Residue on Ignition | Gravimetric Analysis | Weighing of inorganic residue after high-temperature ashing of sample. |
| Bulk Density | Tap Density Measurement | Mass per unit volume determined after standardized tapping of sample in graduated cylinder. |
Technical Specifications of 2,7-Naphthalenedisulfonic acid disodium salt
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=20 ppm |
| Melting Point | >300 °C (decomposes) |
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 2,7-Naphthalenedisulfonic acid disodium salt
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,7-Naphthalenedisulfonic acid disodium salt
Safety Information of 2,7-Naphthalenedisulfonic acid disodium salt
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,7-Naphthalenedisulfonic acid disodium salt
Industrial 2,7-Naphthalenedisulfonic acid disodium salt 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