4,4'-Sulphonylbis(2,6-dibromophenol) Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 39635-79-5 |
| Product name | 4,4'-Sulphonylbis(2,6-dibromophenol) |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial GradeElectronic 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 4,4'-Sulphonylbis(2,6-dibromophenol)
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-Sulphonylbis(2,6-dibromophenol) Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,4'-Sulphonylbis(2,6-dibromophenol)
| Industry | Application | Process |
|---|---|---|
| Electronics & Electrical | Flame retardant for printed circuit boards (PCBs) | Used as a reactive flame retardant in epoxy resins, participating in the curing reaction to form a flame-retardant crosslinked network |
| Electronics & Electrical | Flame retardant additive for copper-clad laminates (CCLs) | Copolymerized with bisphenol-A epoxy resin to enhance glass transition temperature (Tg) and flame retardancy (UL94 V-0 rating) |
| Plastics | Flame-retardant modification of engineering plastics (e.g., PPE/HIPS alloys) | Used as an additive flame retardant in combination with antimony trioxide, acting via gas-phase radical scavenging |
| Coatings | Additive for fire-retardant coatings | Formulated with brominated/phosphorus-based flame-retardant systems for structural steel fire-retardant coatings to improve char layer stability and thermal insulation |
| Rubber | Flame retardancy for wire and cable jacketing compounds | Blended with EVA, CPE, and other base polymers and compounded with Sb₂O₃ for uniform dispersion during extrusion or calendering |
Manufacturing Quality Control of 4,4'-Sulphonylbis(2,6-dibromophenol)
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by reversed-phase HPLC with UV detection at 220-280 nm using external standard calibration. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content based on the stoichiometric reaction of iodine with water in pyridine/methanol medium. |
| Residue on Ignition | Gravimetric Analysis | Determination of inorganic ash content after high-temperature incineration and weighing of residual solids. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of heavy metals via atomic emission spectroscopy after acid digestion and plasma excitation. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anions using suppressed conductivity detection after ion exchange. |
| Bromine Content | Oxidation-Reduction Titration | Determination of total bromine via alkaline hydrolysis followed by bromide oxidation and iodometric back-titration. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement using capillary tube method with controlled heating rate and visual endpoint detection. |
| Organic Volatile Impurities | GC-FID | Identification and quantification of residual solvents by gas chromatography with flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Size analysis based on angular dependence of laser light scattering from dispersed particles in liquid medium. |
| Bulk Density | ASTM D1895 | Measurement of mass per unit volume for freely settled powder using standardized cylinder and funnel apparatus. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Assessment of yellowness index against platinum-cobalt standards using spectrophotometric absorbance at 430 nm. |
| pH of Aqueous Suspension | pH Meter | Measurement of hydrogen ion activity in a defined water suspension (e.g., 10% w/v) using calibrated glass electrode. |
Technical Specifications of 4,4'-Sulphonylbis(2,6-dibromophenol)
| Test Item | Specification |
|---|---|
| Appearance | White to gray crystalline solid |
| Purity | >=98.0% (by LC-MS) |
| Melting Point | 195–199 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=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'-Sulphonylbis(2,6-dibromophenol)
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-Sulphonylbis(2,6-dibromophenol)
Safety Information of 4,4'-Sulphonylbis(2,6-dibromophenol)
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 4,4'-Sulphonylbis(2,6-dibromophenol)
Industrial 4,4'-Sulphonylbis(2,6-dibromophenol) 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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