Pyromellitic Dianhydride CAS# 89-32-7





Pyromellitic Dianhydride, Promotion Season Now in Store and Free Sample for Testing with Factory Price
- Appearance: White or light yellow crystal powder
- Assay: 99.5%min
- Packaging: 25kg/ Barrel
- Sample: Available
Pyromellitic Dianhydride: The Complete Guide
- Chapter 1: Quality Control of Pyromellitic Dianhydride
- Chapter 2: Description of Pyromellitic Dianhydride
- Chapter 3: Basic Info of Pyromellitic Dianhydride
- Chapter 4: What is Pyromellitic Dianhydride?
- Chapter 5: What’s the application of Pyromellitic Dianhydride?
- Chapter 6: Keywords of Pyromellitic Dianhydride
- Chapter 7:WHY THEY SAY TO US
- Chapter 8: Hot Sale Products
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Quality Control of Pyromellitic Dianhydride
Quality Control & MSDS
Chemical Structure

Packing of Bretazenil


Description of Pyromellitic Dianhydride
Pyromellitic dianhydride is an organic compound with the formula C6H2(C2O3)2. It is the double carboxylic acid anhydride that is used in the preparation of polyimide polymers such as Kapton. It is a white solid.
It is prepared by gas-phase oxidation of 1,2,4,5-tetramethylbenzene (or related tetrasubstituted benzene derivatives). An idealized equation is:
Basic Info of Pyromellitic Dianhydride
Basic Info
Chemical Name | 1,2,4,5-Benzenetetracarboxylic anhydride |
Synonyms | 1H,3H-Benzo[1,2-c:4,5-c‘]difuran-1,3,5,7-tetrone;benzene-1,2,4,5-tetracarboxylic dianhydride;BDFtetron;Pyromellitic anhydride;Piromellitic dianhydride;Expand |
CAS No. | 89-32-7 |
Molecular Formula | C10H2O6 |
Molecular Weight | 218.11900 |
PSA | 94.56000 |
LogP | -0.50460 |
Safety Info
RTECS | DB9300000 |
Safety Statements | S22-S24-S26-S37/39 |
HS Code | 2917399090 |
WGK Germany | 1 |
Risk Statements | R41; R42/43 |
Hazard Codes | Xn |
Hazard Declaration | H317; H318; H334 |
Caution Statement | P261; P280; P284; P304 + P340; P305 + P351 + P338 + P310 |
Signal Word | Danger |
Symbol | GHS05, GHS08 |
Properties
Appearance & Physical State | White powder |
Density | 1.68 |
Boiling Point | 397-400ºC |
Melting Point | 283-287ºC |
Flash Point | 380ºC |
Refractive Index | 1.708 |
Water Solubility | decomposes |
Stability | Stable under normal temperatures and pressures. |
Storage Condition | Store in a cool, dry place. Store in a tightly closed container. |
Numbering system
MDL number | MFCD00005005 |
What is Pyromellitic Dianhydride?
Part I: Introduction
With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Pyromellitic Dianhydride which has developed particularly rapidly in recent years. Do you know about Pyromellitic Dianhydride?
The official answer: Homophthalic dianhydride, referred to as homophthalic dianhydride, is white or slightly yellow crystals in pure form. When exposed to humid air, it will quickly absorb the moisture in the air and hydrolyze into homophthalic acid. It is soluble in dimethyl sulfoxide, dimethylformamide, acetone, and other organic solvents, insoluble in ether, chloroform, and benzene. Mainly used as the raw material of polyimide, used as curing matting agent of epoxy resin and cross-linking agent of polyester resin.
What’s the application of Pyromellitic Dianhydride?
Used in the manufacture of polyimide resin, the latter is used as the raw material for high temperature resistant electrical insulation paint. It is also used to make epoxy resin curing agents and plasticizers, urea-formaldehyde resin stabilizer, phthalocyanine blue dye, corrosion inhibitor, instant binder, electronic photography color mixing agent, etc. PMDA is mainly used as a curing agent for epoxy resin, raw material for polyimide, and cross-linking of polyester resin to produce homogeneous polyetherimide resin, which is a kind of high-temperature resistant engineering material that can be used in 2600C continuous Chemicalbook for a long time. Used in the manufacture of polyimide film, polyimide resin, powder coating matting agent, advanced electrical insulation materials; used in the manufacture of polyimide heat-resistant engineering plastics and insulation film of the main raw materials; can be used as an epoxy resin curing agent, stabilizer and dyestuff and other synthetic raw materials used in the manufacture of polyimide resin, high temperature resistant electric insulation paint, PVC plasticizer, synthetic resin cross-linking agent and epoxy resin curing agent, also used in the manufacture of Phthalocyanine blue dyes, etc.
Conclusion
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