| Diphenic anhydride Basic information |
| Product Name: | Diphenic anhydride |
| Synonyms: | 2,2'-Bibenzoic Anhydride 2,2'-Biphenyldicarboxylic Anhydride;Dibenzo[c,e]oxepine-5,7-dione;Diphenic anhydride 98%;dibenz[c,e]oxepin-5,7-dione;diphenic acid anhydride;O-DIPHENIC ANHYDRIDE;DIPHENIC ANHYDRIDE;biphenyl-2,2'-dicarboxylic anhydride |
| CAS: | 6050-13-1 |
| MF: | C14H8O3 |
| MW: | 224.21 |
| EINECS: | 227-950-0 |
| Product Categories: | Biphenyl series;Biphenyl derivatives;Anhydride Monomers;Monomers;Polymer Science |
| Mol File: | 6050-13-1.mol |
| Diphenic anhydride Chemical Properties |
| Melting point | 225-227 °C (lit.) |
| Boiling point | 325.61°C (rough estimate) |
| density | 1.2337 (rough estimate) |
| refractive index | 1.5400 (estimate) |
| storage temp. | Inert atmosphere,Room Temperature |
| form | Crystalline Powder or Flakes |
| color | White to beige or grayish-brown |
| Water Solubility | decomposes |
| Sensitive | Moisture Sensitive |
| BRN | 171255 |
| CAS DataBase Reference | 6050-13-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 2,2'-Biphenyldicarboxylic anhydride(6050-13-1) |
| EPA Substance Registry System | Dibenz[c,e]oxepin-5,7-dione (6050-13-1) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-37/39-7/8-24/25-37 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29173990 |
| MSDS Information |
| Provider | Language |
|---|---|
| 2,2'-Biphenyldicarboxylic anhydride | English |
| ACROS | English |
| SigmaAldrich | English |
| ALFA | English |
| Diphenic anhydride Usage And Synthesis |
| Chemical Properties | Powder |
| Purification Methods | After removing free acid by extraction with cold aqueous Na2CO3, the residue is crystallised from acetic anhydride and dried at 100o. Acetic anhydride converts the acid to the anhydride. It also crystallises from *C6H6 (m 219o) or chlorobenzene (m 224.5-225.5o). [Beilstein 17 H 526, 17 II 495, 17 III/IV 6425.] |
| Diphenic anhydride Preparation Products And Raw materials |
| Preparation Products | 6H-dibenzo-(b,d)-pyran-6-one |
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