Benzophenon-3,3':4,4'-tetracarbonsaeuredianhydrid
|
|
|
- CAS-Nr.
- 2421-28-5
- Bezeichnung:
- Benzophenon-3,3':4,4'-tetracarbonsaeuredianhydrid
- Englisch Name:
- 3,3',4,4'-Benzophenonetetracarboxylic dianhydride
- Synonyma:
- BTDA;NOTAVAILABLE;5,5'-Carbonylbis(isobenzofuran-1,3-dione);5,5'-Carbonylbis;LABOTEST-BB LT02097910;4,4'-Diphthalic anhydride ketone;4,4'-CARBONYLDIPHTHALIC ANHYDRIDE;Bis-(3-phthalyl anhydride) ketone;3,3',4,4'-BenzophenonetetracarboxyL;4,4'-Carbonylbis[phthalic anhydride]
- CBNumber:
- CB5164853
- Summenformel:
- C17H6O7
- Molgewicht:
- 322.23
- MOL-Datei:
- 2421-28-5.mol
|
Benzophenon-3,3':4,4'-tetracarbonsaeuredianhydrid Eigenschaften
- Schmelzpunkt:
- 218-222 °C (lit.)
- Siedepunkt:
- 320°C 5mm
- Dichte
- 1,57 g/cm3
- Dampfdichte
- 1.4 (vs air)
- Dampfdruck
- <0.1 mm Hg ( 0 °C)
- Brechungsindex
- 1.6380 (estimate)
- Flammpunkt:
- 324 °C
- storage temp.
- Inert atmosphere,Room Temperature
- Löslichkeit
- DMF: 0.1 g/mL, clear
- Aggregatzustand
- Needles or Crystalline Powder
- Farbe
- Off-white to brown
- Explosionsgrenze
- 16%
- Wasserlöslichkeit
- REACTS
- Sensitive
- Moisture Sensitive
- maximale Wellenlänge (λmax)
- 580nm(CH3CN)(lit.)
- Sublimation
- 220-230 ºC
- BRN
- 761777
- Stabilität:
- Hygroscopic
- InChIKey
- VQVIHDPBMFABCQ-UHFFFAOYSA-N
- LogP
- 3.3 at 25℃
- NIST chemische Informationen
- Bis-(3-phthalyl anhydride) ketone(2421-28-5)
- EPA chemische Informationen
- Benzophenonetetracarboxylic dianhydride (2421-28-5)
Benzophenon-3,3':4,4'-tetracarbonsaeuredianhydrid Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R36/37:Reizt die Augen und die Atmungsorgane.
S-Sätze Betriebsanweisung:
S25:Berührung mit den Augen vermeiden.
Chemische Eigenschaften
white crystall powder
Verwenden
BTDA is important monomer of polyimide, and used for production of polyimide material.
Allgemeine Beschreibung
Benzophenone-3,3′,4,4′-tetracarboxylic acid is formed by hydrolysis, it can be converted to the dianhydride by treating with Ac
2O (molar ratio 4 to 1 of acid).The dianhydride is used to synthesize polyimides, which are highly flexible in nature due to the presence of keto and carbonyl groups in the dianhydride molecule. The keto and carbonyl groups subsequently increase the spacing between the imide rings enhancing the solubility and processibility.
läuterung methode
The main impurity is the free acid formed by hydrolysis (check for OH bands in the IR). This can be converted to the dianhydride by treating with Ac2O (molar ratio of 4 to 1 of acid), heating at 110-120o for 1.5 to 2hours, cooling to 0—5o and collecting the dianhydride. This is then dissolved in hot dioxane or Me2CO, filtered and cooled to 10—15o. The moisture sensitive solid is collected and dried at 120—130o in vacuo. It has been sublimed at high vacuum. [Faberov et al. J Org Chem USSR 4 153 (English translation) 1968.]
Benzophenon-3,3':4,4'-tetracarbonsaeuredianhydrid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Benzophenon-3,3':4,4'-tetracarbonsaeuredianhydrid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 392)Lieferanten
2421-28-5(Benzophenon-3,3':4,4'-tetracarbonsaeuredianhydrid)Verwandte Suche:
- 1,3-Isobenzofurandione, 5,5'-carbonylbis-
- 3,3',4,4'-Benzophenonetetracarboxylic acid dianhydride
- 3,3',4,4'-Tetracarboxybenzophenone dianhydride
- 3,3’,4,4’-benzophenonetetracarboxylicaciddianhydride
- BENZOPHENONETETRACARBOXYLIC ACID DIANHYDRIDE
- BENZOPHENONE-TETRACARBOXYLIC-DIANHYDRIDE
- BTDA~4,4-Carbonyldiphthalic anhydride
- 3,3',4,4'-BENZOPHENONETETRACARBOXYLIC DI ANHYDRIDE, SUBLIMED, 98%
- 3,3',4,4'-BENZOPHENONETETRACARBOXYLIC DI
- 3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 97+%
- BENZOPHENONE-3,3'',4,4''-TETRACARBOXYLIC DIANHYDRIDE (BTDA)
- 3,3'',4,4''-BENZOPHENONETETRACARBOXYLIC DIANHYDRIDE 98%
- 5,5-Carbonylbis(1,3-isobenzofurandione)
- benzophenone-3,3',4,4'-tetracarboxylic dianhydride 4,4'-carbonyldi(phthalic anhydride)
- 3,3',4,4'-Benzophenonetetracarboxylic dianhydride ,99.5%
- 3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 98+%
- 5-(1,3-Dioxo2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione
- 3,3',4,4'-Benzophenonetetracarboxylic dianhydride ,99%
- 4,4'-Carbonylbis(benzene-1,2-dicarboxylic acid)1,2:1',2'-dianhydride
- 3,3',4,4'-Benzophenonetetracarboxylic dianhydride,96%
- 3-Isobenzofurandione,5,5’-carbonylbis-1
- 4,4'-Carbonylbis[phthalic anhydride]
- 4,4'-Diphthalic anhydride ketone
- 5,5’-carbonylbis-3-isobenzofurandione
- 4,4'-CARBONYLDIPHTHALIC ANHYDRIDE
- 3,3',4,4'-BENZOPHENONETETRACARBOXYLIC DIANHYDRIDE
- Benzophenonetetracarboxylic acid anhydride
- Benzophenonetetracarboxylic anhydride
- Phthalic anhydride, 4,4'-carbonyldi-
- LABOTEST-BB LT02097910
- BENZOPHENONE-3,3',4,4'-TETRACARBOXYLIC DIANHYDRIDE
- 3,3',4,4'- twophenyl ketonefourtwo acidanhydride
- Benzophenone-3,3',4,4'-tetracarboxylic dianhydride 96%
- 3,3',4,4'-Benzophenonetetracarboxylic Dianhydride (purified by sublimation)
- 3,3'4,4'-Benzophenonetetracarboxylic dianhydride (BTDA)
- 3,3',4,4'-Benzophenonetetracarboxylic dianhydride, reagent grade
- 4,4'-Carbonyldiphthalic Anhydride (BTDA)
- 3,3',4,4'-Benzophenonetetracarboxylic Dianhydride >
- 3,3',4,4'-Benzophenonetetracarboxylic Dianhydride (purified by sublimation)>
- 3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 99.5%, reagent grade
- 3,3',4,4'-BenzophenonetetracarboxyL
- 3,3',4,4'-BENZOPHENONETETRACARBOXYLIC DIANHYDRIDE 2421-28-5
- 3,3',4,4'-Benzophenonetetracarboxylic dianhydride ISO 9001：2015 REACH
- 3,3',4,4'-Benzophenonetetracraboxylic Dianhydride
- Factory supply BTDA CAS 2421-28-5 with purity 99%
- Benzophenon-3,3':4,4'-tetracarbonsaeuredianhydrid
- 5,5'-Carbonylbis(isobenzofuran-1,3-dione)
- NOTAVAILABLE
- BTDA
- 3,3'4,4' -benzophenone tetracarboxylic anhydride
- Bis-(3-phthalyl anhydride) ketone
- 3,3 ', 4,4' - Diphenylketone tetraacetic anhydride
- 3,3',4,4' -diphenylketetracoic anhydride
- 3,3',4,4'-Benzophenonetetracarboxylicdianhydride
- 5,5'-Carbonylbis
- 3,3',4,4'-Benzophenonetetracarboxylic dianhydride(BTDA)
- Benzophenone-3,3',4,4'-tetracarboxylic dianhydride
- 2421-28-5
