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89-32-7
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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% |
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% |