Disodium 4,4'-bis(2-sulfostyryl)biphenyl Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 27344-41-8 |
| Product name | Disodium 4,4'-bis(2-sulfostyryl)biphenyl |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial 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 Disodium 4,4'-bis(2-sulfostyryl)biphenyl
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Disodium 4,4'-bis(2-sulfostyryl)biphenyl Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Disodium 4,4'-bis(2-sulfostyryl)biphenyl
| Industry | Application | Process |
|---|---|---|
| Papermaking | Enhancing paper whiteness and brightness | Added to the pulp suspension during sheet formation and retained on fiber surfaces via adsorption |
| Textiles | Optical brightening of synthetic fibers such as polyester and nylon | Applied in high-temperature, high-pressure dyeing (approximately 130°C) as a co-bath additive with disperse dyes |
| Plastics | Optical brightening of plastic products including polyester (PET) and polypropylene (PP) | Blended with resin prior to melt extrusion or injection molding to ensure uniform dispersion in the polymer matrix |
| Detergents | Optical brightening agent in laundry powders and liquid detergents | Formulated with surfactants and auxiliaries into powder or slurry products using low-temperature mixing |
Manufacturing Quality Control of Disodium 4,4'-bis(2-sulfostyryl)biphenyl
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination based on peak area comparison with a certified reference standard using reversed-phase chromatography and UV detection at 345 nm. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via reaction of iodine with sulfur dioxide in the presence of water and base. |
| Ash Content | Gravimetric Analysis | Residue mass after incineration at 550-600 C, expressed as percentage of original sample weight. |
| pH of Aqueous Solution | Potentiometric Measurement | Measurement of hydrogen ion activity in a 1% w/v aqueous dispersion using a calibrated pH electrode. |
| Heavy Metals (as Pb) | AAS | Atomic absorption spectroscopy quantifies lead after acid digestion and matrix-matched calibration. |
| Chloride Content | Argentometric Titration | Titration with standardized silver nitrate solution using potassium chromate indicator to detect endpoint by red precipitate formation. |
| Organic Impurities | HPLC-DAD | Separation and detection of structurally related impurities using diode-array detection for spectral confirmation. |
| Solubility in Water | Visual Assessment | Evaluation of complete dissolution of 0.1 g sample in 10 mL distilled water at 25 C with agitation and standing for 5 min. |
| Bulk Density | Graduated Cylinder Method | Mass of material freely poured into a calibrated cylinder divided by its settled volume. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity patterns to calculate volume-based particle size distribution. |
| Residue on Ignition | Gravimetric Analysis | Weight loss upon heating at 750 C for 30 min; residue reported as % of initial mass. |
| Color Value (Yellowness Index) | Spectrophotometric Measurement | Calculation from reflectance measurements at 457 nm and reference wavelengths using CIE tristimulus values. |
Technical Specifications of Disodium 4,4'-bis(2-sulfostyryl)biphenyl
| Test Item | Specification |
|---|---|
| Appearance | Yellow-green solid |
| Purity | >=98.5% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Melting Point | 210–215°C |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
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 4,4'-bis(2-sulfostyryl)biphenyl
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Disodium 4,4'-bis(2-sulfostyryl)biphenyl
Safety Information of Disodium 4,4'-bis(2-sulfostyryl)biphenyl
| Pictograms |  |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of Disodium 4,4'-bis(2-sulfostyryl)biphenyl
Industrial Disodium 4,4'-bis(2-sulfostyryl)biphenyl 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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