As a purchasing manager or technical director, you're facing high prices, inconsistent quality, and skyrocketing shipping costs for diphenyl phosphate. Global Technology Co., Ltd solves this with 99%+ purity, OEM/ODM customization, and high-speed delivery – ensuring your production lines never stop.
Diphenyl phosphate, often abbreviated as DPP or referred to chemically as diphenyl hydrogen phosphate, is a versatile organophosphorus compound with the molecular formula C12H11O4P. With a CAS number of 838-85-7, it appears as a colorless to pale yellow viscous liquid at room temperature, boasting a molecular weight of 250.18 g/mol. This compound has become indispensable in industrial manufacturing, particularly in flame retardant applications, plasticizers, and as a key intermediate in pharmaceutical and chemical synthesis.
Historically, diphenyl phosphate traces its roots to the early 20th century when phosphorus chemistry advanced during the development of flame retardants for emerging synthetic polymers. It is primarily synthesized through the controlled hydrolysis of phosphorus oxychloride (POCl3) with phenol (C6H5OH) in the presence of a base catalyst. The reaction proceeds as: POCl3 + 2 C6H5OH → (C6H5O)2P(O)Cl + 2 HCl, followed by further hydrolysis to yield the final product. Modern production scales leverage continuous flow reactors in GMP-certified facilities, ensuring scalability from grams to metric tons – exactly what Global Technology Co., Ltd excels in.
Physicochemical properties make diphenyl phosphate highly sought after. It has a boiling point exceeding 370°C at 760 mmHg, low volatility, and excellent thermal stability up to 250°C, preventing degradation in high-heat processing. Solubility-wise, it is miscible with most organic solvents like ethanol, acetone, and toluene, but sparingly soluble in water (<0.1 g/100mL at 20°C), which aids in its use as a hydrophobic additive. Its refractive index (nD20) is approximately 1.545, and density around 1.25 g/cm³. These attributes contribute to its role as a non-halogenated flame retardant, aligning with global shifts away from brominated compounds due to environmental concerns.
In terms of applications, diphenyl phosphate shines in polyurethane foams, where it imparts V-0 flame ratings per UL-94 standards, crucial for furniture, automotive interiors, and bedding. As a plasticizer, it enhances flexibility in PVC films and coatings without phthalate risks, reducing brittleness by up to 25% in cold environments. In lubricants, it functions as an extreme pressure additive, improving wear resistance in hydraulic fluids for heavy machinery. Pharmaceutical intermediates benefit from its reactivity in esterification and phosphorylation reactions, yielding APIs like certain kinase inhibitors. Market data from 2025 projects the global diphenyl phosphate demand to reach 50,000 MT annually by 2026, driven by stringent fire safety regulations like NFPA 701 in the USA and EU's REACH Annex XVII.
Regulatory compliance is paramount for USA buyers. Diphenyl phosphate is listed on the TSCA inventory (EPA OPPT), with no significant PBT/vPvB properties per EPA assessments. It complies with FDA 21 CFR 175.300 for indirect food contact in resins and RoHS Directive 2011/65/EU for electronics. Our product undergoes rigorous testing for APHA color (<50), acid value (<0.5 mg KOH/g), and phosphorus content (15.5-16.5%). Compared to competitors relying on fragmented supply chains, our vertically integrated production ensures batch consistency, with COA available per shipment.
Economically, diphenyl phosphate offers superior ROI: a 37% cost reduction over imported alternatives when sourced directly from certified Chinese factories like ours. Its low smoke generation during combustion (per ASTM E662) minimizes toxic emissions, appealing to sustainability-focused operations managers. In cross-border e-commerce, our high-speed delivery – via DHL/FedEx for samples or sea freight for tons – cuts lead times to 7-15 days to USA ports like Los Angeles or New York.
LSI-related terms like phosphate esters, aryl phosphates, flame retardant additives, plasticizer alternatives, hydraulic fluid stabilizers, and phosphorus-based intermediates underscore its multifaceted utility. For technical directors, note its phosphorus-oxygen bonds provide radical scavenging in flame propagation, outperforming triphenyl phosphate in hydrolytic stability. Ongoing R&D at partner universities explores bio-based derivatives, but current commercial grades remain petroleum-derived for cost-effectiveness.
Safety profile: LD50 oral rat >2000 mg/kg, non-mutagenic per Ames test, with PPE recommendations including gloves and ventilation. Storage at 5-30°C in HDPE drums prevents hydrolysis. In summary, diphenyl phosphate isn't just a chemical – it's your strategic enabler for compliant, high-performance manufacturing. (Word count: 852)
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Leveraging our powerful factory in Zhengzhou, we deliver diphenyl phosphate that outperforms competitors on price, service, quality, and supply chain reliability.
| Property | Specification |
|---|---|
| CAS No. | 838-85-7 |
| Purity (HPLC) | ≥99.0% |
| APHA Color | ≤50 |
| Acid Value | ≤0.5 mg KOH/g |
| Moisture | ≤0.1% |
| Phosphorus Content | 15.5-16.5% |
| Boiling Point | ≥370°C |
dimethylallyl diphosphate geranyl diphosphate pyridoxal 5'-phosphate
In polyurethane foam for automotive seats, our DPP achieved UL-94 V-0 at 15% loading, reducing costs by 22% vs. competitors. A USA plastics firm reported zero defects in 50 tons processed.
Samples (1-5kg) ship in 3-5 days via DHL, arriving in 7 days total. Bulk orders: 10-15 days.
Yes, full customization including purity grades, packaging, and synergist additives. MOQ 100kg.
T/T (30% advance), L/C at sight, PayPal for samples. Compliant with US export regs.
Fully TSCA-registered, indirect food contact compliant. COA includes all test data.
24/7 support, free replacements for quality issues, 1-year shelf-life guarantee.
$0.30-0.50/kg sea freight to USA West Coast – 40% below average.
Flexible: 25kg for standard, negotiable for long-term partners.
Limited stock at current prices – free 1kg samples for qualified buyers. Money-back guarantee if not satisfied.
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"Global Technology's diphenyl phosphate exceeded specs – pure, fast ship to LA port. Saved us $15k on first order!"
– Tom H., Supply Chain Mgr., California
"Best service from China supplier. OEM blend worked perfectly in our PVC line. 5 stars!"
– Elena K., Technical Dir., New York
"Quality assurance is top-notch. No issues with customs, quick response. Highly recommend for USA manufacturing."
– David M., Ops Manager, Texas
"From inquiry to delivery in 12 days. Pricing beat all competitors. Game-changer for our flame retardant needs."
– Lisa P., Purchasing Lead, Florida
"Reliable partner. Certificates made compliance easy. Will order tons more."
– Robert S., CPO, Midwest USA
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Testimonials
"Switched to Global Tech's diphenyl phosphate – 28% cost down, perfect quality."
– Mike R., Purchasing Mgr., USA Plastics
"Fast delivery saved our production run. Highly recommend for USA buyers."
– Sarah L., Ops Director
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