A1233912
Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride , 96% , 2421-28-5
Synonym(s):
4,4′-Carbonyldiphthalic anhydride
CAS NO.：2421-28-5
Empirical Formula: C17H6O7
Molecular Weight: 322.23
MDL number: MFCD00005923
EINECS: 219-348-1
| Pack Size | Price | Stock | Quantity |
| 25G | RMB54.40 | In Stock |
|
| 100G | RMB143.20 | In Stock |
|
| 500G | RMB655.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 218-222 °C (lit.) |
| Boiling point: | 320°C 5mm |
| Density | 1,57 g/cm3 |
| vapor density | 1.4 (vs air) |
| vapor pressure | <0.1 mm Hg ( 0 °C) |
| refractive index | 1.6380 (estimate) |
| Flash point: | 324 °C |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | DMF: 0.1 g/mL, clear |
| form | Needles or Crystalline Powder |
| color | Off-white to brown |
| explosive limit | 16% |
| Water Solubility | REACTS |
| Sensitive | Moisture Sensitive |
| λmax | 580nm(CH3CN)(lit.) |
| Sublimation | 220-230 ºC |
| BRN | 761777 |
| Stability: | Hygroscopic |
| InChIKey | VQVIHDPBMFABCQ-UHFFFAOYSA-N |
| LogP | 3.3 at 25℃ |
| NIST Chemistry Reference | Bis-(3-phthalyl anhydride) ketone(2421-28-5) |
| EPA Substance Registry System | Benzophenonetetracarboxylic dianhydride (2421-28-5) |
Description and Uses
BTDA polymer fine free-flowing powder suitable for general purposes. BTDA Microfine Micronized powder facilitates mixing in epoxy resins. BTDA ultrapure high-purity, high-assay powder for critical polyimide synthesis.
