| Identification | More | [Name]
Diphenic anhydride | [CAS]
6050-13-1 | [Synonyms]
2,2'-BIBENZOIC ANHYDRIDE
2,2'-BIPHENYLDICARBOXYLIC ACID ANHYDRIDE
2,2'-BIPHENYLDICARBOXYLIC ANHYDRIDE
2,2'-DIPHENIC ANHYDRIDE
DIPHENIC ANHYDRIDE
O-DIPHENIC ANHYDRIDE
dibenz[c,e]oxepin-5,7-dione
diphenic acid anhydride
biphenyl-2,2'-dicarboxylic anhydride
Diphenicanhydride,98%
2,2'-Diphenyldicarboxylic anhydride
Benzo[d][2]benzoxepine-5,7-dione
1,1'-Biphenyl-2,2'-dicarboxylic anhydride
Dibenz[c,e]oxepine-5,7-dione | [EINECS(EC#)]
227-950-0 | [Molecular Formula]
C14H8O3 | [MDL Number]
MFCD00004993 | [Molecular Weight]
224.21 | [MOL File]
6050-13-1.mol |
| Chemical Properties | Back Directory | [Appearance]
Powder | [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]
| [EPA Substance Registry System]
6050-13-1(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
S7/8:Keep container tightly closed and dry .
S24/25:Avoid contact with skin and eyes .
S37:Wear suitable gloves . | [WGK Germany ]
3
| [TSCA ]
Yes | [HS Code ]
29173990 |
| Hazard Information | Back Directory | [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.] |
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