4,4'-BIPHENYLDISULFONIC ACID Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 5314-37-4 |
| Product name | 4,4'-BIPHENYLDISULFONIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/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 4,4'-BIPHENYLDISULFONIC ACID
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-BIPHENYLDISULFONIC ACID Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,4'-BIPHENYLDISULFONIC ACID
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Synthetic dye intermediate | Used as a bifunctional linking unit in the synthesis of azo dyes and other aromatic dyes, participating in coupling reactions |
| Chemical Synthesis | Organic synthesis intermediate | Employed in laboratory and industrial settings to construct complex aromatic systems, enabling functionalization via sulfonic acid groups or serving as a ligand precursor |
| Polymer Materials | Polymer modifier | Applied as a disulfonic acid monomer in polymerization to produce polymeric materials with ion-exchange properties |
| Pharmaceutical R&D | Pharmaceutical intermediate | Utilized in the synthesis of bioactive compounds, providing a rigid biphenyl scaffold to enhance molecular stability |
Manufacturing Quality Control of 4,4'-BIPHENYLDISULFONIC ACID
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantifies sulfonic acid groups by titration with standardized NaOH solution using phenolphthalein or potentiometric endpoint detection. |
| Moisture Content | Karl Fischer Titration | Determines water content based on stoichiometric reaction of iodine with water in a methanol-based solvent system. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic impurities by ashing at 500-600 C and weighing the residual mass. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals after acid digestion by measuring absorbance of characteristic atomic vapor lines. |
| Sulfate (SO4) Impurity | Barium Sulfate Gravimetric Method | Precipitates sulfate as BaSO4 under controlled pH and temperature, followed by filtration and weighing. |
| Chloride (Cl) Impurity | Potentiometric Titration with AgNO3 | Detects chloride via argentometric titration using silver nitrate and a silver/silver chloride electrode. |
| Iron (Fe) Content | ICP-OES | Measures iron concentration after sample digestion by detecting element-specific emission wavelengths in inductively coupled plasma. |
| Organic Impurities (Related Substances) | HPLC-UV | Separates and quantifies structurally related compounds using reversed-phase chromatography and UV detection at 254 nm. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating purity and identity. |
| pH of Aqueous Solution | pH Meter Measurement | Measures hydrogen ion activity in a saturated aqueous suspension using calibrated glass electrode. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Quantifies volatile content by measuring mass loss upon heating to 105 C under controlled atmosphere. |
| Bulk Density | Graduated Cylinder Method | Determines mass per unit volume of freely settled powder in a standard cylinder. |
Technical Specifications of 4,4'-BIPHENYLDISULFONIC ACID
| Test Item | Specification |
|---|---|
| Appearance | White to gray or red crystalline powder |
| Purity | >=98.0% (by NMR) |
| Melting Point | 295-300 °C (decomposes) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| 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
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Download COA of 4,4'-BIPHENYLDISULFONIC ACID
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-BIPHENYLDISULFONIC ACID
Packaging of 4,4'-BIPHENYLDISULFONIC ACID
Industrial 4,4'-BIPHENYLDISULFONIC ACID 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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