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89-32-7 - Pyromellitic dianhydride, 97% - 1,2,4,5-Benzenetetracarboxylic dianhydride - A12712 - Alfa Aesar

A12712 Pyromellitic dianhydride, 97%

CAS Number
89-32-7
Synonyms
1,2,4,5-Benzenetetracarboxylic dianhydride

Size Price ($) Quantity Availability
100g 35.54
500g 127.72
2500g 418.40
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Pyromellitic dianhydride, 97%

MDL
MFCD00005005
EINECS
201-898-9

Chemical Properties

Formula
C10H2O6
Formula Weight
218.12
Melting point
284-288°
Boiling Point
305-310°/30mm
Flash Point
380°(716°F)
Density
1.68
Sensitivity
Moisture Sensitive
Solubility
Soluble in dimethyl sulfoxide, acetone, chloroform, ethyl ether, n-hexane and benzene.

Applications

Pyromellitic dianhydride is used as a monomer in the preparation of polyimide polymers such as kapton; thermoplastics such as polyesters, polyethers, plasticizers, and expoxy resins. It is involved in the preparation of high performance coatings due to its mechanical, thermal and oxidative stability properties. It acts as a curing agent for epoxy resins which find application in adhesives, coatings and molding powders. As an intermediate, it plays an important role in polyimide based materials like printed circuit boards, tape automated bonding and magnetic wire insulation.

Notes

Moisture sensitive. Store in cool place. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with alcohols and strong oxidizing agents.

Literature References

Xia, T.; Xi, Z.; Yi, X.; Liu, T.; Zhao, L. Melt Foamability of Poly(ethylene terephthalate)/Clay Nanocomposites Prepared by Extrusion Blending in the Presence of Pyromellitic Dianhydride. Ind. Eng. Chem. Res. 2015, 54 (27), 6922-6931.

Zhu, L.; Wang, X.; Wu, L.; Luo, Y.; Zhu, Y.; Lin, Q.; Shi, Z. Thermal decomposition properties of cross-linked polycarbonate derived from carbon dioxide, propylene oxide and pyromellitic dianhydride. Mater. Lett. 2014, 128, 396-399.

GHS Hazard and Precautionary Statements

Hazard Statements: H334-H317-H318-H303

May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause an allergic skin reaction. Causes serious eye damage. May be harmful if swallowed.

Precautionary Statements: P285-P261-P280-P305+P351+P338-P310-P342+P311-P312-P363-P304+P341-P501a

In case of inadequate ventilation wear respiratory protection. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician. Call a POISON CENTER or doctor/physician if you feel unwell. Wash contaminated clothing before reuse. IF INHALED: If breathing is difficult, remove to fresh air and keep at rest in a position comfortable for breathing. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Beilstein
213583
Harmonized Tariff Code
2917.39
TSCA
Yes
RTECS
DB9300000

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