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1,2,4,5-Benzenetetracarboxylic anhydride PDMA with 99.5% purity manufacturer in China Pyromellitic Dianhydride with high purity and best price
Wuhan Xinru Chemical Industry Co.,Ltd founded in 2006, engaged in R&D, producing and marketing barium salts, sodium salts, fertilizer and medical intermediates.
We have several stock-holding factories, based on strong R&D ability, advanced production technology and experienced team; pluses international trade office in Wuhan, we can offer high and stable quality products with quick response and service.
Since 2006,we have already developed and established a very good relationship with different reputed customers in EU, Egypt, Canada, Korea, USA, Chile, Turkey, Thailand etc.Our products widely used in water purification,magnet material, rubber, ceramic,glass,painting, powder coating, plastic industry, pharmacy and so on.
OUR MISSION: satisfy customers needs ,serve wholeheartedly and sincerely.
OUR SERVICE: supply excellent quality product with competitive price and fast
shipment and timely delivery.
In the light of customer first, excellent quality, competitive price, good service, the principle of mutual benefit , to serve our new and old customers.
All we want is win-win busines.
Welcome to our company and warm welcome to inquiry me about all of our products, we will provide the competitive price for it.
We are sincerely responsible for the “Product quality and “After service.
Details of Pyromellitic Dianhydride:
Product Name: |
Pyromellitic Dianhydride | |
Synonyms: |
1,2,4,5-Benzenetetracarboxylic anhydride;Benzene-1,2,4,5-tetracarboxylic dianhydride; PMDA;
|
|
CAS: |
89-32-7 |
|
Molecular formula: |
C10H2O6 |
|
Molecular weight: |
218.11900 |
|
283-287 °C(lit.) |
||
Boiling point |
397-400℃
|
|
Density |
1,68 g/cm3 |
|
Refractive index |
1.708 |
|
380℃ |
||
Solubility |
Slightly soluble in water, insoluble in ether, chloroform, soluble in ethanol, acetone, ethyl acetate. |
|
Stability: |
hygroscopic |
|
Fp |
176-178°C |
|
Appearance and character |
White powder or acicular knot |
Application:
1.Used as material for polyamide, polyimide film, polyimide resin, high temperature-resistant electrical insulating enamel as well as high temperature-resistant coatings;
2.Utilized as the curing agent of epoxy resin, the stabilizer of bakelite and the auxiliary agent of powder coating;
Analysis Specifications :
Pyromellitic dianhydride(PDMA) Testing date:2019-02-18 |
|||
NO. |
ITEMS |
STANDARD |
RESULTS OF ANALYSIS |
1 |
Purity |
≥99.5% |
99.91% |
2 |
PMA% |
≤ 0.5 |
0.073 |
3 |
Acid Value ( mgKOH/g) |
≥1010 |
1035 |
4 |
Melting Point |
283~ 287℃ |
286.8℃ |
5 |
Appearance |
White powder crystals |
White powder crystals |
Packing:
Net weight 20kg in aluminum foil bags filled with nitrogen gas, and then wrapped with paper bags; or Net weight 120kg in aluminum foil bags filled with nitrogen gas, and then wrapped in cardboard drum; or according to customers’requirements.
Storgae:
Stored in dry and airy places;
Products transport:
Loaded and unloaded gently to avoid damaging the package;
Stored and transported by laws and regulations about hazardous chemicals.
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