Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 162881-26-7 |
| Product name | Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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 Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
| Industry | Application | Process |
|---|---|---|
| Coatings | Photoinitiator for UV-curable coatings | UV curing |
| Inks | Photoinitiating component in high-performance UV inks | UV curing in screen printing, offset printing, and flexographic printing |
| Adhesives | Formulation component for fast-curing UV adhesives | Light-initiated free-radical polymerization for rapid bonding |
| 3D Printing | Key photoinitiator in UV-curable 3D printing resins | Digital light processing (DLP) and stereolithography (SLA) fabrication |
| Electronics | Used in photosensitive solder mask inks and encapsulation materials | UV exposure curing in PCB manufacturing |
| Dental Materials | Component of the photoinitiating system in dental composite resins | In-situ curing under visible or blue light irradiation |
Manufacturing Quality Control of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color and condition of the sample. Qualified products are usually pale yellow to light orange powders with no visible impurities. |
| Purity (Main Component Content) | High-Performance Liquid Chromatography (HPLC) | Use reverse-phase HPLC with a UV detector (e.g., 254 nm), quantitatively determine the content of 819 by comparing with a standard, generally requiring purity ≥98%. |
| Moisture Content | Karl Fischer Titration | Determine moisture content using Karl Fischer reagent titration. Controlling moisture is significant for storage stability, typically required ≤0.5%. |
| Melting Point | Melting Point Determination (Capillary or DSC Method) | Determine the melting temperature using a melting point apparatus or differential scanning calorimetry (DSC). Irgacure 819 has a melting point of approximately 86–90°C, used to judge purity and crystal form. |
| Ash Content (Residue) | Ignition Residue Method | Heat the sample in a muffle furnace until constant weight, measure the inorganic residue content, reflecting the level of inorganic impurities, generally required ≤0.1%. |
| UV Absorption Characteristics | UV-Visible Spectrophotometry (UV-Vis) | Determine the absorption peak position and intensity at specific wavelengths (e.g., around 370 nm), verifying whether the characteristic absorption spectrum conforms to the standard. |
| Volatile Matter | Thermogravimetric Analysis (TGA) | Measure mass loss under programmed temperature conditions to evaluate volatile impurities or solvent residues, commonly used in process control. |
| Particle Size Distribution | Laser Particle Size Analysis | Used for powdered products, determines particle size distribution, which affects dispersibility and application performance. |
Technical Specifications of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (by LC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 132–136°C |
| Identification (NMR) | Conforms to reference spectrum |
| Identification (IR) | Conforms to reference spectrum |
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 Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
Safety Information of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
Industrial Phenylbis(2,4,6-trimethylbenzoyl)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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