DOPO is a new type of phosphorus-containing environmental friendly organic phosphorus flame retardant intermediate with high reaction activity. It can be grafted and copolymerized into polymer main chain with permanent flame retardancy without precipitation, high heat and oxidation resistance, core synthetic monomer for high-end flame retardant materials.
| Chemical Name | 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide |
| Chemical Formula | C₁₂H₉O₂P |
| CAS | 35948-25-5 |
| Appearance | White to off-white crystalline powder |
| Melting point | 117-121℃ |
| Boiling point | Sublime and decompose at high temperature |
| Density（ρ20）, g/cm³ | 1.38 |
| Molecular Weight | 210.17 |
| Solubility | Soluble in hot ethanol, toluene, DMF, NMP and other organic solvents, hardly soluble in water |
Used for synthesis of halogen-free flame retardant epoxy resin, flame retardant resin monomer for copper clad laminate, permanent flame retardant modification of polyester fiber, flame retardant raw material for electronic potting compound, synthesis of high temperature resistant flame retardant coating and comonomer of bio-based flame retardant materials.
Store hermetically away from light and moisture at low temperature, prevent moisture from affecting reaction activity, keep away from acid-base catalysts, manage high-end flame retardant monomers by separate classification.
We mainly supply agricultural fertilizers including urea, potassium sulfate, ammonium chloride and water-soluble fertilizer materials; as well as industrial chemical raw materials such as calcium chloride, sodium bicarbonate and phosphate products.
Yes. We can provide batch COA, MSDS, certificate of origin and other full set of export documents to meet customs clearance requirements worldwide.
Sure. We offer agricultural grade and industrial grade products. Customized purity, particle size and packaging are all available as customers' demands.
Sample order is acceptable. For bulk orders, goods can be delivered within 3-7 days for in-stock items. We also support long-term bulk order production arrangement.
We offer exclusive one-on-one pre-sales and after-sales responses throughout the process, along with customized supporting solutions, ensuring high efficiency, peace of mind, and reliable and stable delivery.
With 26 years of in-depth experience in the chemical industry, we have a well-established supply chain system, sufficient production capacity reserves, and the ability to provide large-scale supplies and continuous delivery.
We adhere to research and development innovation and strict quality control. Our formula and process are mature and stable, and our products feature high purity, stable performance, and are suitable for high-end application requirements in multiple industries.
If you have any questions, concerns, or need assistance, please feel free to contact us via phone, email, or online customer service at any time, and we will provide you with support and answers as soon as possible.
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