Sodium 6-hydroxynaphthalene-2-sulfonate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 135-76-2 |
| Product name | Sodium 6-hydroxynaphthalene-2-sulfonate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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 Sodium 6-hydroxynaphthalene-2-sulfonate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Sodium 6-hydroxynaphthalene-2-sulfonate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Sodium 6-hydroxynaphthalene-2-sulfonate
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Synthesis of dye intermediates | Used in the synthesis of azo dyes and other naphthalene-based dyes as a key intermediate in coupling reactions |
| Pharmaceutical Industry | Synthesis of pharmaceutical intermediates | Applied in organic synthesis pathways for certain anti-inflammatory or analgesic drugs |
| Leather Industry | Leather dyeing auxiliary | Acts as a dispersing and leveling agent to improve dye distribution within leather fibers |
| Textile Industry | Textile dyeing auxiliary | Enhances dye solubility and stability, improving dyeing uniformity |
| Analytical Chemistry | Preparation of analytical reagents | Used in the preparation of specific colorimetric reagents or reference standards for colorimetric analysis |
Manufacturing Quality Control of Sodium 6-hydroxynaphthalene-2-sulfonate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantification based on absorbance at characteristic wavelength (e.g., ~330 nm) using a calibrated standard curve. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in anhydrous methanol medium. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Determination using calibrated glass electrode in 1% w/v aqueous solution at 25 C. |
| Sodium Content | Flame Photometry | Quantification by measuring intensity of sodium emission line (589 nm) in atomized sample solution. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Measurement of absorbance at characteristic wavelength after acid digestion and matrix matching. |
| Sulfate Impurity | Gravimetric Analysis | Precipitation as BaSO4 followed by ignition and weighing of the dried precipitate. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Titration using silver nitrate and silver indicator electrode to detect endpoint of AgCl precipitation. |
| Organic Impurities (Related Substances) | HPLC-UV | Separation on reversed-phase column and detection at UV wavelength; quantification against reference standards. |
| Iron Content | Colorimetric Method (1,10-Phenanthroline) | Formation of orange-red Fe(II)-phenanthroline complex measured spectrophotometrically at ~510 nm. |
| Residue on Ignition | Gravimetric Analysis | Weighing residue after heating sample at 700-800 C to remove volatile matter and decompose organic components. |
| Water Insolubles | Filtration and Drying | Filtration of aqueous solution through pre-weighed sintered glass crucible, drying, and gravimetric determination. |
| Bulk Density | Tap Density Measurement | Mass per unit volume after controlled tapping of sample in calibrated cylinder according to ASTM D1895. |
Technical Specifications of Sodium 6-hydroxynaphthalene-2-sulfonate
| Test Item | Specification |
|---|---|
| Appearance | Yellow-brown solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=10 ppm |
| Melting Point | 245–255 °C (decomposes) |
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 Sodium 6-hydroxynaphthalene-2-sulfonate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Sodium 6-hydroxynaphthalene-2-sulfonate
Safety Information of Sodium 6-hydroxynaphthalene-2-sulfonate
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of Sodium 6-hydroxynaphthalene-2-sulfonate
Industrial Sodium 6-hydroxynaphthalene-2-sulfonate 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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