1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 525-05-3 |
| Product name | 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical 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-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC 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 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
| Industry | Application | Process |
|---|---|---|
| Dye Manufacturing | Synthesis of dyes | Reacted with aromatic amines via diazotization to produce azo dyes |
| Pharmaceutical Manufacturing | Intermediate | Used as a precursor to diazo compounds in drug synthesis |
Manufacturing Quality Control of 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (C6H5N3Na2O4) | Acid-Base Titration with HCl | Quantifies sodium nitroprusside by acid hydrolysis to release NO, followed by back-titration of excess acid. |
| Moisture Content | Karl Fischer Titration | Measures water content via coulometric or volumetric reaction between water and iodine in pyridine-methanol medium. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Simultaneously quantifies trace heavy metals after acid digestion using plasma excitation and elemental emission spectroscopy. |
| Sodium Content | Flame Photometry | Determines sodium concentration based on intensity of characteristic yellow emission at 589 nm in flame atomization. |
| Iron Impurity | UV-Vis Spectrophotometry | Measures Fe(II)-1,10-phenanthroline complex absorbance at ~510 nm after reduction and chelation. |
| Free Cyanide | Ion-Selective Electrode (ISE) | Detects CN- activity in solution using a cyanide-specific membrane electrode under controlled pH. |
| pH (1% aqueous solution) | pH Meter Measurement | Measures hydrogen ion activity in a standardized aqueous suspension using calibrated glass electrode. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Quantifies Cl- by titration with silver nitrate, detecting endpoint via silver electrode potential change. |
| Sulfate Impurity | Gravimetric Analysis | Precipitates sulfate as BaSO4, followed by filtration, drying, and weighing of the insoluble residue. |
| Organic Impurities (Related Substances) | HPLC-UV | Separates and quantifies structurally related impurities using reversed-phase chromatography and UV detection at 254 nm. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue after high-temperature ashing at 700-800 C and weighing. |
| Particle Size Distribution | Laser Diffraction | Determines size distribution by analyzing angular variation in laser light scattering from dispersed particles in liquid medium. |
Technical Specifications of 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
| Test Item | Specification |
|---|---|
| Appearance | Red crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 235-240°C (decomposes) |
| 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 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
Safety Information of 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
Industrial 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC 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.
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