4-Sulfo-1,8-naphthalic anhydride potassium salt Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 71501-16-1 |
| Product name | 4-Sulfo-1,8-naphthalic anhydride potassium salt |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial 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) |
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 4-Sulfo-1,8-naphthalic anhydride potassium salt
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Sulfo-1,8-naphthalic anhydride potassium salt Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Sulfo-1,8-naphthalic anhydride potassium salt
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Intermediate | Used in the synthesis of reactive and direct dyes |
| Pharmaceutical Industry | Pharmaceutical Intermediate | Employed as a raw material or reactant in the synthesis of certain pharmaceuticals |
| Pesticide Industry | Pesticide Production | Serves as an intermediate in the synthesis of specific pesticide types |
| Cosmetics Industry | Functional Additive | Applied in cosmetics as a stabilizer or other functional additive |
| Fiber Industry | Dyeing Auxiliary | Used as an auxiliary agent in fiber dyeing to enhance dyeing performance |
Manufacturing Quality Control of 4-Sulfo-1,8-naphthalic anhydride potassium salt
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by comparison of peak area against a certified reference standard using reversed-phase chromatography and UV detection at 254 nm. |
| Moisture Content | Karl Fischer Titration | Volumetric titration based on the reaction of water with iodine and sulfur dioxide in a pyridine-methanol medium. |
| Residue on Ignition | Gravimetric Analysis | Measurement of non-volatile inorganic residue after high-temperature ashing at 700-800 C. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification via plasma excitation and emission spectroscopy after acid digestion. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anions using anion-exchange column and conductivity detection. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitation of sulfate as BaSO4 followed by filtration, drying, and weighing. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Determination using calibrated glass electrode in a 1% w/v aqueous suspension. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to derive volume-based particle size distribution. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents using capillary gas chromatography with flame ionization detection. |
| Iron Content | AAS | Atomic absorption spectroscopy measurement after sample acid digestion and air-acetylene flame atomization. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Mass loss measured under controlled heating (105 C, 2 h) in air or nitrogen atmosphere. |
| Color (APHA) | Visual Comparison or Spectrophotometric Method | Assessment of yellowness intensity in solution relative to platinum-cobalt standards at 430 nm. |
Technical Specifications of 4-Sulfo-1,8-naphthalic anhydride potassium salt
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 275-280°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=10 ppm |
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 4-Sulfo-1,8-naphthalic anhydride potassium salt
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Sulfo-1,8-naphthalic anhydride potassium salt
Safety Information of 4-Sulfo-1,8-naphthalic anhydride potassium salt
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 4-Sulfo-1,8-naphthalic anhydride potassium salt
Industrial 4-Sulfo-1,8-naphthalic anhydride potassium 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