Hefei TNJ chemical industry co.,ltd
Diamond Supplier Enterprise Certification
- Diamond
Supplier - 10th
years
Diamond Supplier Enterprise Certification
Product Certification&
Enterprise Certification
Country: 
China (Mainland)
Business Type:Trading Company
Tel: +86-551-65418695
Tel: 0086-551-65418671
Tel: 0086-551-67199489
Tel: 0551-65418672
Tel: +86 551 6541 8675
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Tel: 0551-65418684
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Mobile: 0086-551-18225849144
Tel: +86-551-65418695
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Province/state: Anhui
City: Hefei
Street: B911 Xincheng Business Center, Qianshan Road, Hefei Anhui China
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CAS NO.89-32-7
Technology: Technology innovation is our eternal pursuit,or we will be left behind.Our technology experts,all from famous universities and institutes,has rich experience and high achievements in chemical research.This makes sure that our technology support is reliable and authoritative.All of self-owned fine chemicals are manufactured strictly in accordance with international standard.We have our own independent lab test center,and also has scientific cooperation with local colleges and institutes.
Certificate: ISO Certification
Product Information
| Product Name | 1,2,4,5-Benzenetetracarboxylic anhydride |
| Synonyms | Pyromellitic dianhydride; PMDA |
| Molecular Formula | C10H2O6 |
| Molecular Weight | 218.1193 |
| CAS Registry Number | 89-32-7 |
| EINECS | 201-898-9 |
| Density | 1.885g/cm3 |
| Melting point | 283-287℃ |
| Boiling point | 398.6°C at 760 mmHg |
| Refractive index | 1.708 |
| Flash point | 183.5°C |
| Water solubility | decomposes |
| Vapour Pressur | 1.45E-06mmHg at 25°C |
Specification
| Item | Specification |
| Appearance | White or white crystalline solid |
| Assay | ≥99.5% |
| Melting point | 284-287oC |
| Neutralization equivalent | 54.5±0.2. |
Application
All pyromellitic dianhydride extinction curing agent, mainly used in the production of powder coatings in polyimide resin and film, high temperature resistant electric insulating paint, solid lubricant, epoxy resin curing agent, plasticizer and crosslinking agent of polyester resin, etc.
Packing & Storage
Packing: 20kg per carton packaging or according per customer's requirement
Storage: Stored shall be placed in dry, ventilated place, beware of be affected with damp be affected with damp
