China Factory Direct
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| CAS number | 995-32-4 |
| Product name | TETRAETHYL ETHYLENEDIPHOSPHONATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum |
| 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 |
|---|---|---|
| Pesticides | Intermediate for organophosphorus insecticides | Used to synthesize phosphorus-containing heterocyclic compounds with insecticidal activity, such as thiophosphate insecticides |
| Pharmaceuticals | Intermediate for drug synthesis | Employed in constructing phosphorus-containing scaffolds of biologically active molecules for anticancer or antiviral drug development |
| Materials Science | Flame retardant additive | Applied as a reactive flame retardant in copolymer modification of engineering plastics such as polycarbonate and polyester |
| Organic Synthesis | Phosphonium ylide precursor | Treated with strong base in Wittig reactions to generate ethylidene phosphorane ylides for alkene synthesis |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies main component peak area relative to calibration curve using volatile organic compound separation and flame ionization detection. |
| Water Content | Karl Fischer Titration | Measures water via stoichiometric reaction between iodine, sulfur dioxide, and water in a methanol-based reagent. |
| Acidity (as H3PO4) | Acid-Base Titration with NaOH | Determines titratable acidic impurities by neutralization with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Color | Visual Comparison or Spectrophotometry (APHA scale) | Evaluates yellowness/browning by matching sample color to platinum-cobalt standard solutions or measuring absorbance at 455 nm. |
| Density | Digital Density Meter | Calculates density from oscillation period of a U-tube filled with sample at controlled temperature. |
| Refractive Index | Refractometry | Measures bending of light through liquid sample at specified temperature to assess purity and concentration. |
| Chloride Impurity | Ion Chromatography (IC) | Separates and quantifies chloride anions using ion-exchange column and conductivity detection. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals after wet digestion by measuring atomic absorption of ground-state metal atoms in flame or graphite furnace. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Determines non-volatile inorganic impurities by weighing residue remaining after high-temperature ashing. |
| Phosphate Esters (Related Substances) | Gas Chromatography-Mass Spectrometry (GC-MS) | Identifies and quantifies structurally similar ester impurities via retention time and mass spectral fragmentation patterns. |
| Viscosity | Rotational Viscometry | Measures resistance to flow under shear stress using calibrated spindle rotation in controlled-temperature bath. |
| pH (10% aqueous solution) | pH Meter Measurement | Determines hydrogen ion activity in aqueous dilution using calibrated glass electrode and reference electrode. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless to almost colorless clear liquid |
| Purity | >=98.5% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.465–1.475 |
| Relative Density (20°C/25°C) | 1.180–1.195 g/cm³ |
| Odor | Characteristic mild ester-like odor |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Warning |
| Safety Data Sheet | |
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.