China Factory Direct
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| CAS number | 7211-39-4 |
| Product name | DIMETHYLPHOSPHINE OXIDE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Electronics | Used in the synthesis of semiconductor materials as a dopant or precursor | Chemical vapor deposition (CVD) |
| Pharmaceuticals | Serves as an intermediate in drug synthesis, particularly for anticancer and antiviral agents | Organic synthesis |
| Agriculture | Used as an intermediate in pesticide manufacturing, participating in the synthesis of highly effective, low-toxicity organophosphorus insecticides | Catalytic or condensation reactions |
| Materials Science | Used in the production of flame-retardant materials as a modifier for flame retardants | Polymerization or surface treatment |
| Chemicals | Used as an organic synthesis reagent in the preparation of phosphonate compounds | Esterification or oxidation reactions |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (DMPO content) | Gas Chromatography (GC) with FID detection | Quantitative separation and detection based on volatility and retention time relative to certified reference standard. |
| Water content | Karl Fischer titration | Electrochemical titration measuring water via iodine-sulfur dioxide reaction in methanol-pyridine solvent system. |
| Acidity (as H3PO4) | Acid-base titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and phenolphthalein endpoint detection. |
| Color | Visual comparison against APHA scale | Comparison of sample color in a 100-mm cell to platinum-cobalt standard solutions under controlled lighting. |
| Density at 20 C | Digital densitometry | Measurement of mass per unit volume using oscillating U-tube principle calibrated with air and water standards. |
| Refractive Index at 20 C | Abbe refractometry | Determination of light bending angle at air-sample interface using calibrated prism and sodium D-line illumination. |
| Residue on evaporation | Gravimetric analysis | Evaporation of fixed sample volume to dryness at 105 C followed by weighing of non-volatile residue. |
| Heavy metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of metal ions after acid digestion and chelation, based on absorption of element-specific hollow cathode lamp radiation. |
| Chloride content | Ion chromatography (IC) | Separation of anions on ion-exchange column followed by conductivity detection using suppressed eluent. |
| Iron content | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Atomization and excitation of digested sample in argon plasma; detection via element-specific emission wavelengths. |
| Non-volatile matter | Gravimetric analysis | Evaporation of known mass sample at 105 C to constant weight; residue expressed as mass percent. |
| Odor | Sensory evaluation | Trained personnel assess presence and intensity of characteristic odor against defined descriptors and intensity scale. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.5% (by NMR) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.3% |
| Refractive Index (n20/D) | 1.425 - 1.435 |
| Relative Density (20°C/25°C) | 1.025 - 1.035 g/cm³ |
| Odor | Characteristic, mild phosphine-like |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.