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45788 Pyromellitic dianhydride, 98%

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

Stock No. Size Price ($) Quantity Availability
45788-22 100g 58.40
45788-36 500g 222.00
45788-A3 2kg 791.00
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Pyromellitic dianhydride, 98%

MDL
MFCD00005005
EINECS
201-898-9

Chemical Properties

Formula
C10H2O6
Formula Weight
218.12
Form
Crystalline powder
Melting point
284-288°
Boiling Point
305-310°/30mm
Flash Point
380°(716°F)
Density
1.68
Storage & Sensitivity
Moisture Sensitive. Ambient temperatures.
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: H317-H318-H334

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

Precautionary Statements: P261-P272-P280-P285-P302+P352-P304+P341-P305+P351+P338-P310-P333+P313-P342+P311-P363-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Contaminated work clothing should not be allowed out of the workplace. Wear protective gloves/protective clothing/eye protection/face protection. In case of inadequate ventilation wear respiratory protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: If breathing is difficult, remove to fresh air and keep at rest in a position comfortable for breathing. 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 skin irritation or rash occurs: Get medical advice/attention. If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician. Wash contaminated clothing before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Beilstein
213583
Harmonized Tariff Code
2917.39
TSCA
Yes
RTECS
DB9300000

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