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Pyromellitic Acid (PMA) 1,2,4, 5-benzoic acid from factory East Chemsources-best price

Name: Pyromellitic Acid (PMA) 1,2,4, 5-benzoic acid from factory East Chemsources-best price
Brand: EAST CHEMSOURCES
SKU: pr2603061186
Price: 1 USD
Availability: InStock

TDS 1 Inquiries

Unit Price:

$1-1.2/MT FOB

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CAS No.:

89-05-4

Grade:

Industrial Grade

Content:

98%

Port:

China

Brand:

EAST CHEMSOURCES

Packaging:

25kg

Sample Available:

Yes

Price valid (until):

2030-12-31

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QINGDAO EAST CHEMSOURCES TRADE CO.,LTD

Company Type:

Trader

Location:

China

Payment Terms:

TT against copy of documents,TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

10 days

Qualification:

Main Products:

Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

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Product Details
Seller Information
Inquiry History

Description

Product Detail

1. - Basic Information
    
    Email: export@eastchem-cn.com
    
    Mobile phone /WhatsApp/ WeChat ：18954221560
    Pyromellitic Acid (PMA)
    
    CAS No.: 89-05-4
    
    Supplier: East Chemsources Limited
    
    Supply Type: Factory Direct | Best Competitive Price
    
    1. Product Identification
    
    Product Name: Pyromellitic Acid
    
    Abbreviation: PMA
    
    CAS No.: 89-05-4
    
    Chemical Formula: C₁₀H₆O₈
    
    Molecular Weight: 254.15
    
    Appearance: White crystalline powder
    
    2. Typical Specifications
    
    Purity: ≥ 99.0%
    
    Moisture: ≤ 0.1%
    
    Ash: ≤ 0.05%
    
    Melting point: 280 – 285 °C
    
    3. Main Applications
    
    Raw material for PMDA, polyimides, high-temperature resins
    
    Epoxy curing agent & crosslinking agent
    
    High-performance coatings & engineering plastics
    
    Plasticizer & modifier for polymers
    
    4. Packaging & Storage
    
    Packaging: 25 kg bag / drum
    
    Storage: Cool, dry, sealed; keep away from moisture
    
    Shelf life: 12 months under proper storage
    
    Transport: Non-hazardous
    
    East Chemsources Limited
    
    Factory Direct • Best Price • Stable Supply

Competitive offers with standard high quality or customize
2. Available customizing blending of above 2 single products
3. Prompt delivery within 2-3 weeks(1 weeks is available for ready stock)
4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 years
5. Respond to inquires within 1 hour and 24hours' online service
6. Free sample and correct shipping documents dispatched according to regulations of different countries
7. Advise price trend accurately and help clients to make order decision
8. Weekly update offers provided to every potential client
Warehouse - Loading onto vehicles - Transportation

Manufacturing Facilities

Chemical industrial park

ECHEMI Editorial Reference

White powder. Absorbs moisture slowly if exposed to atmosphere. Soluble in alcohol, slightly soluble in water.
Pyromellitic acid is a tetracarboxylic acid that is benzene substituted by four carboxy groups at positions 1, 2, 4 and 5 respectively. It is a member of benzoic acids and a tetracarboxylic acid.
Dissolve it in 5.7 parts of hot dimethylformamide, decolorise, filter and cool. The precipitate is collected and dried in air. The solvent is removed by heating in an oven at 150-170o for several hours. It also crystallises from water. [Beilstein 9 H 997, 9 IV 3804.]

Certificates

Basic Info

Product Name:

Pyromellitic acid

Other Name:

USAF xr-20;1,2,4,5-BenzenetetracarboxyL;benzene-1,2,4,5-tetracarboxylate;1,2,4,5-Benzenetetracarboxylic acid,Pyromellitic acid;1,2,4,5-Benzenetetracarboxylic acid, 96% 100GR;1,2,4,5-Benzenetetracarboxylic acid, 96% 5GR;1,2,4,5-BENZENETETRACARBOXYLIC ACID FOR;Pyrome1htic Acid

CAS No.:

89-05-4

Molecular Formula:

C10H6O8

InChIKeys:

CYIDZMCFTVVTJO-UHFFFAOYSA-N

Molecular Weight:

254.15

Exact Mass:

254.15

EC Number:

201-879-5

UNII:

D9UXG2U6ZU

NSC Number:

6369

TSCA:

TSCA listed

DSSTox ID:

DTXSID8044466

Color/Form:

White to very slightly yellow

HScode:

29173980

Categories:

Petrochemical

Characteristics

PSA:

149.20000

XLogP3:

0.44

Appearance:

White to very slightly yellow Crystalline Powder

Density:

0,56 g/cm3

Melting Point:

281-284.5 °C(lit.)

Boiling Point:

317.36°C (rough estimate)

Flash Point:

325 °C

Refractive Index:

1.7010 (estimate)

Water Solubility:

1.5 g/100 mL (20 ºC)

Storage Conditions:

Store below +30°C.

PKA:

pK1: 1.92;pK2: 2.87;pK3: 4.49;pK4: 5.63 (25°C)

Henrys Law Constant:

1.6×1013mol/(m3Pa) at 25℃, Yaws (2003)

Dissociation Constants:

1.87 (at 25 °C)

Critical Temperature & Pressure:

Store below +30°C.

See More Pyromellitic acid Properties 

Hazard Identification

Classification of the substance or mixture

Eye irritation, Category 2

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H319 Causes serious eye irritation
Prevention	P264 Wash ... thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response	P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Pyromellitic acid Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

Location:
Room 501, Unit 6, No. 40, hushan road,Licang,Qingdao

Payment Terms:
TT against copy of documents,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
10 days

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
11-50

Year of Establishment:
2017

QINGDAO EASTCHEMSORCES TRADE LIMITED is a leading Manufactory supplier of Sorbitol, Citric acid, Sodium hypochlorite based in Qingdao, Shandong, China. With a commitment to quality and customer satisfaction, QINGDAO EASTCHEMSORCES TRADE LIMITED has become a trusted name in the industry. Our product line includes a range of high-quality Sorbitol, Citric acid, Sodium hypochlorite, which are available at competitive prices. QINGDAO EASTCHEMSORCES TRADE LIMITED has established itself as a reliable supplier of chemical products on the echemi.com.

Inquiry History

1 Inquiries

Country	Product	Purchase Quantity	Date Posted
Poland	Pyromellitic acid	25 KG	Aug 4, 2026

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Pyromellitic Acid (PMA) 1,2,4, 5-benzoic acid from factory East Chemsources-best price

Product Details

Seller Information

Inquiry History

Basic Information