Home Categories Organic Chemistry Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride
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
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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℃

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.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H319-H335
Precautionary statements  P261-P264-P271-P280-P304+P340+P312-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37
Safety Statements  25
WGK Germany  1
21
Autoignition Temperature 975 °F
TSCA  Yes
HS Code  29183000

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