Dipotassium 7-hydroxynaphthalene-1,3-disulphonate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 842-18-2 |
| Product name | Dipotassium 7-hydroxynaphthalene-1,3-disulphonate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeIndustrial GradeSpecialty GradeCosmetic GradeFood 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 Dipotassium 7-hydroxynaphthalene-1,3-disulphonate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Dipotassium 7-hydroxynaphthalene-1,3-disulphonate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Dipotassium 7-hydroxynaphthalene-1,3-disulphonate
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Intermediate | Used in the synthesis of dyes and pigments |
| Pharmaceutical Industry | Pharmaceutical Intermediate | Used to synthesize pharmaceutical intermediates for subsequent drug production |
| Pesticide Industry | Pesticide Intermediate | Serves as a key intermediate in pesticide synthesis |
| Cosmetic Industry | Cosmetic Ingredient | Used as an ingredient in certain cosmetic formulations |
| Textile Industry | Dyeing Auxiliary | Applied as an auxiliary in textile dyeing to enhance dyeing performance |
Manufacturing Quality Control of Dipotassium 7-hydroxynaphthalene-1,3-disulphonate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantitative determination based on absorbance at characteristic wavelength using a calibrated standard curve. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration measuring water content via iodine-sulfur dioxide reaction in pyridine-methanol medium. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of trace heavy metals by measuring absorption of specific wavelengths of light by ground-state atoms in flame or graphite furnace. |
| Sulfate Impurity | Ion Chromatography (IC) | Separation and quantification of sulfate anions using ion-exchange column with suppressed conductivity detection. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Titration with silver nitrate using silver electrode to detect endpoint based on change in potential due to AgCl precipitation. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Heating sample to 700-800 C to burn off organics, then weighing inorganic residue remaining as ash. |
| pH of Aqueous Solution | pH Meter Measurement | Electrochemical measurement of hydrogen ion activity in a defined aqueous solution (e.g., 1% w/v) using calibrated glass electrode. |
| Organic Impurities (Related Substances) | High Performance Liquid Chromatography (HPLC) | Separation and quantification of structurally related impurities using reversed-phase column and UV detection. |
| Iron Content | ICP-OES | Multi-element quantification of iron by measuring intensity of emitted light at characteristic wavelength after plasma atomization and excitation. |
| Sodium Content | Flame Photometry | Quantification of sodium based on emission intensity of characteristic yellow light (589 nm) when atomized in air-propane flame. |
| Bulk Density | Graduated Cylinder Method | Measurement of mass per unit volume for freely settled powder in standardized cylinder under controlled conditions. |
| Particle Size Distribution | Laser Diffraction | Determination of size distribution by analyzing angular variation in intensity of laser light scattered by dispersed particles in liquid or air. |
Technical Specifications of Dipotassium 7-hydroxynaphthalene-1,3-disulphonate
| Test Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=10 ppm |
| Melting Point | 245-250 °C |
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 Dipotassium 7-hydroxynaphthalene-1,3-disulphonate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Dipotassium 7-hydroxynaphthalene-1,3-disulphonate
Safety Information of Dipotassium 7-hydroxynaphthalene-1,3-disulphonate
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of Dipotassium 7-hydroxynaphthalene-1,3-disulphonate
Industrial Dipotassium 7-hydroxynaphthalene-1,3-disulphonate 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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