Pyromellitic Dianhydride CAS# 89-32-7

Pyromellitic Dianhydride CAS# 89-32-7(2)
Pyromellitic Dianhydride CAS# 89-32-7(3)
Pyromellitic Dianhydride CAS# 89-32-7(4)
Pyromellitic Dianhydride CAS# 89-32-7(5)
Pyromellitic Dianhydride CAS# 89-32-7
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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
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Quality Control of Pyromellitic Dianhydride

Quality Control & MSDS
Chemical Structure
Packing of Bretazenil
Pyromellitic Dianhydride CAS# 89-32-7(4)
Pyromellitic Dianhydride CAS# 89-32-7(5)
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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

 

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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

Sincere to the customer and in good faith of quality is our forever followed motto. It’s the basement to be a human and do business. We take all responsibility for our products and service sincerely. We are a company integrating R&D, production, and sales. The design, research, and development of pharmaceutical intermediates including more than 330 kinds of pharmaceutical intermediates such as Anti-infectives, Cardiovascular and Cerebrovascular Systems, Digestive System, Santi-tumor, Nervous System, Geriatric Drugs, and Gynecological Drugs. At the same time, we have more than 4,000 factories in strategic cooperation with nearly 50,000 chemical products, so we can provide you with a one-stop purchasing service, which greatly saves customers’ procurement costs and time.

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Hi, I‘m Peter Ni, the founder of Sincere-Chem, I’ve been running a company in China that exporting chemicals, pharmaceuticals, and intermediates for over 70 countries now. And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.

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