Audited Supplier
| Item | Standard |
| Product Name | Crude Pyromellitic Dianhydride;PMDA;1,2,4,5-Benzenetetracarboxylic Anhydride |
| Content (w, %) | ≥98 |
| CAS NO | 89-32-7 |
| EINECS No. | 201-898-9 |
| Appearance | Off-White or light yellow crystal |
| Melting Point (ºC) | 283-286 |
| Free acid content | 0.5% max |
| Neutralization Equivalent | 54.5±0.2 |
| Specific Gravity | 1.680 |
| Molecular Formula/ Weight | C10H2O6/ 218.12 |
| Application | Used as raw material for the production of matting curing agent,pyromellitic acid and refining pyromellitic dianhydride |
Crude pyromellitic dianhydride application
Crude pyromellitic dianhydride is mainly used for preparing pyromellitic acid and refining pyromellitic
dianhydride. Crude pyromellitic dianhydride can also be used as raw material for the production of
matting curing agent.
Crude pyromellitic dianhydride product package
1.Polyethylene inner bag, woven bag + tray packaging, net weight 25 kg, placed in a cool and dry place,
strictly sealed and kept against moisture.
2.Can also be customized according to customer requirements.
Our services
1.We have over 20 years producing experience, adopt advanced production and inspection equipment,
optimize production process, to guarantee and improve product quality.
2. Provide samples free of charge.
3. Factory price, no middleman increases costs.
4. Packaging can be customized according to customer requirements
5. We provide commercial invoice, packing list, shipping order, COA, health certificate and certificate of
origin, etc. If your market has any special requirements, please let us know.
6. We can accept various payment methods, such as L / C, t / T, D / A, D / P, O / A, PayPal, Western Union,
etc
7. Timely delivery. We have good cooperation with many professional freight forwarders. Once you confirm
the order, we can send the products to you.FAQ
Q1: Are you manufacturer?
A1:Yes, we are professional manufacturer
Q2:Can I get a sample?
A2:Surely, few quantity samples can be provided for free, but the courier cost should be paid by you first,
and we will return to you in our first cooperation.
Q3:What's your supply capacity?
A3:Our supply capacity is 1000 metric tons/month.
Q4:What's your delivery time?
A4:Usually we will arrange the shipment in 2-3 weeks.
