| Identification | More | [Name]
Tetrafluorophthalic anhydride | [CAS]
652-12-0 | [Synonyms]
3,4,5,6-TETRAFLUOROPHTHALIC ANHYDRIDE
TETRAFLUOROPHTHALIC ANHYDRIDE
Tetrafluorophathlic Anhydride
3,4,5,6-Tetrafluorophthalic anhydride 98%
3,4,5,6-Tetrafluorophthalicanhydride98%
4,5,6,7-Tetrafluoro-1,3-dihydroisobenzofuran-1,3-dione
4,5,6,7-Tetrafluoro-1,3-isobenzofurandione
Tetrafluoroisobenzofuran-1,3-dione | [EINECS(EC#)]
211-485-5 | [Molecular Formula]
C8F4O3 | [MDL Number]
MFCD00039697 | [Molecular Weight]
220.08 | [MOL File]
652-12-0.mol |
| Chemical Properties | Back Directory | [Appearance]
Light greyish to beige powder | [Melting point ]
94-96 °C(lit.) | [Boiling point ]
332.6±42.0 °C(Predicted) | [density ]
1.843±0.06 g/cm3(Predicted) | [storage temp. ]
2-8°C, sealed storage, away from moisture | [solubility ]
Soluble in most organic solvents and acetic acid. | [form ]
Powder | [color ]
Light grayish to beige | [Sensitive ]
Moisture Sensitive | [InChI]
InChI=1S/C8F4O3/c9-3-1-2(8(14)15-7(1)13)4(10)6(12)5(3)11 | [InChIKey]
BJDDKZDZTHIIJB-UHFFFAOYSA-N | [SMILES]
C1(=O)C2=C(C(F)=C(F)C(F)=C2F)C(=O)O1 | [CAS DataBase Reference]
652-12-0(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [Hazard Note ]
Irritant | [HazardClass ]
IRRITANT, MOISTURE SENSITIVE | [HS Code ]
29173990 |
| Hazard Information | Back Directory | [Chemical Properties]
Light greyish to beige powder | [Synthesis]
In a 500 mL three-necked round-bottomed flask equipped with a reflux condenser and a mechanical stirrer, 100 g (0.413 mol) of 3,4,5,6-tetrafluorophthaloyl difluoride (derived from the distillation isolate of Example 2), 43.8 g (0.413 mol) of anhydrous sodium carbonate and 200 g of xylene were added. The reaction mixture was heated to 130°C and kept for 1.5 hours under vigorous stirring. Upon completion of the reaction, the insoluble inorganic salt was removed by thermal filtration. Subsequently, the filtrate was distilled under reduced pressure to remove the solvent, resulting in 84.9 g of the white solid product 3,4,5,6-tetrafluorophthalic anhydride in 93.4% yield. | [References]
[1] Patent: US5523476, 1996, A
[2] Patent: US5523476, 1996, A
[3] Patent: US5523476, 1996, A
[4] Patent: US5523476, 1996, A
[5] Patent: US5523476, 1996, A |
|
|