Product Introduction
Pyromellitic acid (PMA) is also known as 1,2,3, 4-phthalic acid, is an organic compound with the formula C10H8O8. It is an aromatic carboxylic acid consisting of four carboxylic acid groups symmetrically connected at the center of a benzene ring.
Product Properties
|
Product Name： |
Pyromellitic acid |
|
CAS No.： |
89-05-4 |
|
Molecular Formula: |
C10H6O8 |
|
Structural formula: |
|
Product Specification
|
Items |
Standard |
Results |
|
Appearance: |
White powder |
White powder |
|
Assay: |
99.0% |
99.36% |
|
Melting Point: |
281.0-284.0℃ |
282.2℃ |
|
Moisture: |
≤0.50% |
0.38 |
|
Neutralizatiion equivalent: |
63.5±0.2 |
63.62 |
|
Transmittan(425nm): |
95%min |
97.8% |
SGS Testing
Test for the content of phthalic acid in pyromellitic acid.
Test for of ransmittan of Pyromellitic acid in methanol at 425 nm
Our Advantages of Our product
High purity
The purity of our PMA is ≥99.0wt% ,We usually hydrolyze it four or five times to get the high purity.
Very low metal content
The use of deionized water in the hydrolysis process greatly reduces the metal ion content in the product.
High transparency
Dissolved in methanol, transmittance of more than 95%.
Product Application
Pyromellitic acid is primarily used to produce the matting curing agent B68, which is mainly used in coatings and resin systems to reduce surface gloss (i.e., to achieve a matte effect) while ensuring that the coating or resin can be fully cured.
It can also be used as a functional monomer or crosslinking agent to synthesize specialty polymers, which may exhibit exceptional thermal stability, mechanical properties, or reactivity for applications such as high-performance materials, coatings, and adhesives.
Product Packaging & Storage
1.Inside a high-density polyethylene (HDPE) bag, with an outer kraft paper bag and pallet, net weight: 25 kg or 500 kg per bag.
2.Customized packaging options are available upon request.
FAQ
Q: What is the production process of PMA?
A: Durene is subjected to gas-phase catalytic oxidation to produce crude PMDA, which is then hydrolyzed to obtain PMA.
Q: What are the main uses of PMA?
A:PMA is primarily used in the synthesis of resins, coatings, dyes, and pharmaceutical intermediates. Through esterification reactions, it can be transformed into various derivatives, such as pyromellitic diesters, which have broad applications in the field of polymer materials.
Q:Is pyromellitic acid exported as ordinary goods or dangerous goods?
A:It is exported as ordinary goods , no commodity inspection is required. The HS code is 291739.
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