Diphenylphosphine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 829-85-6 |
| Product name | Diphenylphosphine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 Diphenylphosphine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Diphenylphosphine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Diphenylphosphine
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Chiral ligand for asymmetric synthesis catalysts | Used in organic synthesis and coordination chemistry |
| Organic Synthesis | Intermediate for phosphine ligands and functional materials | Applied in Grignard reactions and nucleophilic substitution |
| Materials Science | Precursor or modifier for luminescent materials (e.g., OLEDs) | Employed in polymerization and complex preparation |
| Catalysis | Component of transition metal complex catalysts (e.g., palladium- and rhodium-catalyzed reactions) | Utilized for coordination complex formation and in situ generation of active species |
Manufacturing Quality Control of Diphenylphosphine
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color, physical state, and clarity. Pure product is typically a colorless to pale yellow liquid, free of visible impurities. |
| Assay | Gas Chromatography (GC) | Capillary gas chromatography with flame ionization detection (FID). Qualitative analysis based on retention time; quantitative analysis using external standard method via peak area to accurately determine the content of diphenylphosphine. |
| Purity Analysis | High-Performance Liquid Chromatography (HPLC) | Suitable for separation and analysis of thermally unstable or high-boiling-point impurities. Used with UV or evaporative light scattering detectors to evaluate overall purity and impurity profile. |
| Moisture Content | Karl Fischer Titration | Quantitative reaction of iodine and sulfur dioxide with water in methanol to measure trace moisture levels, controlling adverse effects on phosphide stability. |
| Residual Solvents | Gas Chromatography (GC) | Detect possible residual organic solvents (e.g., benzene, toluene, diethyl ether) from synthesis processes according to pharmacopoeial or standard guidelines for residual solvent testing. |
| Impurity Analysis | Nuclear Magnetic Resonance Spectroscopy (¹H NMR, ³¹P NMR) | Identify structural features through characteristic chemical shifts; detect impurities such as oxidation products (e.g., diphenylphosphine oxide) or hydrolysis by-products. |
| Oxidation Level | ³¹P NMR or GC-MS | ³¹P NMR can distinguish diphenylphosphine (around -20 ppm) from its oxidation products (e.g., oxides at +25~35 ppm), enabling quantification of oxidized impurities. |
| Density | Densitometer or Pycnometer Method | Measure liquid density at a specified temperature (e.g., 20°C) to assist in assessing purity and batch consistency. |
| Refractive Index | Refractometry | Measure refractive index at 20°C (n20D) as a physical constant for rapid identification and preliminary purity assessment. |
| Acid Value / Base Value | Acid-Base Titration | Titrate acidic or basic impurities in the sample to reflect potential decomposition or oxidative side reactions during storage. |
Technical Specifications of Diphenylphosphine
| Test Item | Specification |
|---|---|
| Appearance | Colorless to Light Yellow Liquid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Melting Point | -15 to -10°C |
| Refractive Index (n20/D) | 1.595 to 1.605 |
| Odor | Characteristic odor |
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 Diphenylphosphine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Diphenylphosphine
Industrial Diphenylphosphine 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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