Disodium 2-naphthol-3,6-disulfonate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 135-51-3 |
| Product name | Disodium 2-naphthol-3,6-disulfonate |
| 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 Disodium 2-naphthol-3,6-disulfonate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Disodium 2-naphthol-3,6-disulfonate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Disodium 2-naphthol-3,6-disulfonate
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Key intermediate for azo dyes, used in the synthesis of acid, direct, and reactive dyes | Azotization, sulfonation |
| Textile Industry | Used in dye production to impart vivid red, orange, or purple shades to textiles | Dyeing, post-treatment |
| Chemical Analysis | Colorimetric reagent or indicator for detecting metal ions (e.g., iron, copper) or biochemical agents | Titration, colorimetry |
| Pharmaceutical Intermediates | Precursor for synthesizing certain pharmaceuticals or biologically active molecules | Organic synthesis, condensation reactions |
| Electroplating Industry | Added to electroplating baths to improve coating brightness and uniformity | Electroplating |
Manufacturing Quality Control of Disodium 2-naphthol-3,6-disulfonate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies main compound based on absorbance at characteristic wavelength using calibrated standard curve. |
| Moisture Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration with iodine-based reagent. |
| Inorganic Sulfate (as SO4) | Gravimetric Analysis | Precipitates sulfate as BaSO4 and measures mass after ignition. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Measures chloride by silver nitrate titration using silver electrode detection of endpoint. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Simultaneously quantifies trace metals after acid digestion using plasma excitation and elemental emission. |
| pH of Aqueous Solution | pH Meter Measurement | Measures hydrogen ion activity in 1% w/v aqueous solution using calibrated glass electrode. |
| Water Insolubles | Filtration and Gravimetry | Separates undissolved particles by membrane filtration, dries, and weighs residue. |
| Iron (Fe) Content | AAS | Quantifies iron after sample digestion using atomic absorption at characteristic wavelength. |
| Sodium Content | Flame Photometry | Measures sodium emission intensity in flame for quantitative determination. |
| Organic Impurities (Related Substances) | HPLC-UV | Separates and quantifies structurally related compounds using reversed-phase chromatography and UV detection. |
| Bulk Density | Graduated Cylinder Method | Determines mass per unit volume by tapping standardized cylinder filled with sample. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution by analyzing angular scattering pattern of laser beam through dispersed sample. |
Technical Specifications of Disodium 2-naphthol-3,6-disulfonate
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.5% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.3% |
| Residue on Ignition | <=0.2% |
| Heavy Metals | <=10 ppm |
| Melting Point | 245-250 °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 Disodium 2-naphthol-3,6-disulfonate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Disodium 2-naphthol-3,6-disulfonate
Safety Information of Disodium 2-naphthol-3,6-disulfonate
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of Disodium 2-naphthol-3,6-disulfonate
Industrial Disodium 2-naphthol-3,6-disulfonate 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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