Products Description
Product Name: Pyromellitic acid
CAS: 89-05-4
EINECS: 201-879-5
Melting point: 281-284.5 °C(lit.)
Boiling point: 317.36°C (rough estimate)
Density: 0,56 g/cm3
Refractive index: 1.7010 (estimate)
Fp: 325 °C
Specification
| Items | Specifications |
| Appearance | Colorless and transparent liquid |
| Purity | 99% |
| Storage temp. | Store below +30°C. |
| Package | 1 kg/bag, 20 kg/drum, 25 kg/drum |
Application
1. Acts Pyromellitic acid as a key monomer for synthesizing polyimide resins used in high-temperature resistant coatings and electronic insulation materials.
2. Serves 1 2 4 5-Benzenetetracarboxylic acid CAS 89-05-4 as a cross-linking agent in the production of epoxy resins to enhance their mechanical strength and thermal stability.
3. Functions as a reagent in analytical chemistry for detecting metal ions via complexation reactions in aqueous solutions.
Storage and Precautions
1. Store Pyromellitic acid in sealed containers at 15-25℃ in a cool, dry, dark area away from moisture, strong bases, and oxidizing agents.
2. Keep 1 2 4 5-Benzenetetracarboxylic acid CAS 89-05-4 separated from amines and alcohols to prevent premature condensation reactions during storage.
3. Wear nitrile gloves, safety goggles, and a lab coat during handling to avoid skin contact and dust inhalation.
What are the benfits of taking Pyromellitic acid/1 2 4 5-Benzenetetracarboxylic acid?
1. The tetra-carboxylic acid structure provides multiple reactive sites for efficient polymerization and cross-linking reactions.
2. Excellent 1 2 4 5-Benzenetetracarboxylic acid CAS 89-05-4 thermal stability ensures the derived materials maintain performance at temperatures above 300℃.
3. Good Pyromellitic acid solubility in polar solvents like dimethyl sulfoxide (DMSO) simplifies formulation and processing for industrial applications.
Safety Information
- GHS Classification: Irritant (GHS07, Xi), harmful if swallowed (H302), skin irritant (H315), serious eye irritant (H319), respiratory irritant (H335).
- Oral 1 2 4 5-Benzenetetracarboxylic acid CAS 89-05-4 Pyromellitic acid ingestion may cause gastrointestinal irritation and nausea; skin contact can lead to redness and itching.
- Incompatible with strong bases, amines, and reducing agents, which may trigger exothermic neutralization or decomposition reactions.
- UN Number: Not listed as a hazardous substance for general transport; classified as a non-dangerous good under normal storage conditions.
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| 10 | If you want to need more information,welcome to contact us at any time.
WhatsApp: +86 18317156592
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Packaging




Transportation & Payment

About Transportation
Depending on the requirements of our clients, we can give a variety of transportation options.
For smaller orders, we offer air shipping or international courier services like FedEx, DHL, TNT, EMS, and numerous other unique lines of international transit.
We can transport by sea to a specified port for bigger amounts.
Additionally, we can offer unique services based on the requirements of our clients and the characteristics of their goods.

* We can offer a range of payment options to our clients.
* When the sum is modest, clients typically pay with PayPal, Western Union, Alibaba, and other similar services.
* When the sum is significant, clients typically pay with T/T, L/C at sight, Alibaba, and so on.
* Furthermore, an increasing number of consumers will use Alipay or WeChat Pay to make payments.
FAQ
1
May I get any sample from you?
Re: Yes, of course, we'd like to provide sample to you according to your demands.
2
What is your MOQ?
Re: Usually our MOQ is 1 kg, but sometimes it is also flexible and depends on different products.
3
How long I can get my goods after payment?
Re: If shipped by couriers or air, it usually cost 5-10 days.
If shipped by sea, it usually cost 3-40 days, which depends on your destination.
4
Do you have any after-sales service?
Re: Yes, we will inform you progress of the order, such as product preparation, declaration, transportation follow-up, customs clearance assistance, technical guidance, etc.
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