BIS(P-TOLYL)PHOSPHINE OXIDE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2409-61-2 |
| Product name | BIS(P-TOLYL)PHOSPHINE OXIDE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic 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 BIS(P-TOLYL)PHOSPHINE OXIDE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk BIS(P-TOLYL)PHOSPHINE OXIDE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of BIS(P-TOLYL)PHOSPHINE OXIDE
| Industry | Application | Process |
|---|---|---|
| Polymers | Used as a flame retardant in engineering plastics such as polyester and polycarbonate | Co-polymerized as a reactive flame retardant during polymerization, or melt-blended as an additive |
| Electronic Chemicals | Used as an organophosphorus flame retardant to enhance fire resistance of printed circuit board (PCB) materials | Incorporated into epoxy resin substrates and uniformly dispersed throughout the matrix via thermal curing |
| Fibers & Textiles | Improves flame retardancy of synthetic fibers (e.g., polyester fiber) | Bis(p-tolyl)phosphine oxide is added to the melt prior to spinning, followed by melt spinning |
| Coatings & Paints | Enhances thermal stability and flame retardancy rating of coatings | Blended as a functional additive into polyurethane or acrylic coating systems, then cured via spray or dip coating |
| Polymer Modification | Improves heat resistance and anti-dripping performance of materials | Compounded with base resins during injection molding or extrusion to enhance structural stability at elevated temperatures |
Manufacturing Quality Control of BIS(P-TOLYL)PHOSPHINE OXIDE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities using gradient HPLC-UV; identification based on retention time matching and threshold limits per ICH Q3B. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify volatile organic solvents (e.g., toluene, methanol) against calibrated standards. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine-based reagent to determine water content via stoichiometric reaction. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and others after acid digestion, based on atomic emission intensities at characteristic wavelengths. |
| Chloride Content | Ion Chromatography | Separation and conductivity detection of chloride ions in aqueous extract after sample dissolution and dilution. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities with standardized KOH ethanol solution, using phenolphthalein indicator or potentiometric endpoint. |
| Melting Point | Capillary Melting Point Apparatus | Determination of solid-to-liquid transition temperature range using calibrated capillary apparatus per USP <741>. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity of solid sample against established reference under controlled lighting. |
| Residue on Ignition | Gravimetric Analysis | Weighing of non-volatile inorganic residue after high-temperature ashing (700-800 C) in platinum crucible. |
| Bulk Density | Tap Density Measurement | Determination of mass per unit volume after controlled tapping of a known mass in a graduated cylinder per USP <616>. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to derive size distribution profile of dry powder sample. |
Technical Specifications of BIS(P-TOLYL)PHOSPHINE OXIDE
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (GC) |
| Melting Point | 124–128°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| 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 BIS(P-TOLYL)PHOSPHINE OXIDE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of BIS(P-TOLYL)PHOSPHINE OXIDE
Packaging of BIS(P-TOLYL)PHOSPHINE OXIDE
Industrial BIS(P-TOLYL)PHOSPHINE OXIDE 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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