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Pyromellitic Dianhydride CAS 89-32-7

1,2,4,5-Benzenetetracarboxylic1,2:4,5-dianhydride;1,2,4,5benzenetetracarboxylic1,2:4,5dianhydride;1,2,4,5-benzenetetracarboxylic1,2:4,5-dianhydride;1,2,Chemicalbook4,5-Benzenetetracrboxylicdianhydride;pyromelliticacidanhydride;pyromelliticaciddianhydride;Pyromelliticanhydride;1,2,4,5-BENZENETETRACARBOXYLICANHYDRIDE
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  • 89-32-7

  • bosschem

  • 89-32-7

Pyromellitic Dianhydride Basic information
Product Name: Pyromellitic Dianhydride
CAS: 89-32-7
MF: C10H2O6
MW: 218.12
EINECS: 201-898-9
Mol File: 89-32-7.mol
Pyromellitic Dianhydride Chemical Properties
Melting point 283-286 °C(lit.)
Boiling point 397-400 °C(lit.)
density 1,68 g/cm3
vapor pressure 0Pa at 25℃
refractive index 1.6000 (estimate)
Fp 380 °C
solubility Soluble in dimethyl sulfoxide, acetone, chloroform, ethyl ether, n-hexane and benzene.
form Fine Powder
pka 5.45[at 20 ℃]
color White to pale yellow
Water Solubility decomposes
Sensitive Moisture Sensitive
BRN 213583
InChIKey ANSXAPJVJOKRDJ-UHFFFAOYSA-N
LogP -2.03 at 21.5℃
CAS DataBase Reference 89-32-7(CAS DataBase Reference)
NIST Chemistry Reference 1,2,4,5-Benzenetetracarboxylic anhydride(89-32-7)
EPA Substance Registry System 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone (89-32-7)

分析项目

Item

标准值

Standard Value

检测结果

Result

外观

Appearance

白色或微黄色结晶状

White or light yellow crystal-like

白色结晶状

White crystal-like

含量,% Assay

≥99.50

99.75%

熔点, ℃ Melting point

284.0~288.0

286.8℃

游离酸

Free acid ,%

≤0.5

0.19%

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