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Pyromellitic Dianhydride CAS 1143-72-2 PMDA IN Stock 1,2,4,5-Benzenetetracarboxylic anhydride CAS 1143-72-2 CAS NO.89-32-7
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Keywords
- Pyromellitic Dianhydride
- PMDA
- 1,2,4,5-Benzenetetracarboxylic anhydride
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- ProName: Pyromellitic Dianhydride CAS 1143-72-2...
- CasNo: 89-32-7
- Molecular Formula: reliable Manufacturer and commercial b...
- Appearance: As per Certificate of analysis and our...
- Application: It is an important raw material and in...
- DeliveryTime: within 5days upon order
- PackAge: Export standard and according to the c...
- Port: SHANGHAI or any port in China
- ProductionCapacity: 3000 Metric Ton/Month
- Purity: 99% Haccp,,Halal,SC US FDA GMP IS...
- Storage: Store in dry, dark and ventilated plac...
- Transportation: By AIR or by SEA GMP licence / US-FDA...
- LimitNum: 5 Kiloliter
- Heavy metal: heavy metal content less than 20ppm
- Grade: Industrial Grade
- Melting Point: 106-109 oC
- Boiling point: 137 oC (3 torr)
- Appearance: White to off-white crystalline powder
- Application: Pharmaceutical intermediates. Can make...
- Loss On Drying: < 0.30%
- heavy metal: < 20ppm
- purity: >99.50%
- Impurity: <0.5%
- Specific Rotation: +2°
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Chemwill Asia co.,Ltd is one of the leading manufacturer in CHINA.
Pyromellitic Dianhydride CAS 1143-72-2 PMDA IN Stock 1,2,4,5-Benzenetetracarboxylic anhydride CAS 1143-72-2
1143-72-2 CAS 1143-72-2 highly quality and immedaite delivery
PMDA 1,2,4,5-Benzenetetracarboxylic anhydride Pyromellitic Dianhydride COA TDS price MSDS
PMDA 1,2,4,5-Benzenetetracarboxylic anhydride Pyromellitic Dianhydride MSDS
PMDA 1,2,4,5-Benzenetetracarboxylic anhydride Pyromellitic Dianhydride TDS
PMDA 1,2,4,5-Benzenetetracarboxylic anhydride Pyromellitic Dianhydride price
Product no. chemwill-Pyromellitic Dianhydride -9210122
PMDA 1,2,4,5-Benzenetetracarboxylic anhydride Pyromellitic Dianhydride Manufacturer High quality Best price In stock factory
PMDA Pyromellitic Dianhydride CAS 89-32-7
1,2,4,5-Benzenetetracarboxylic anhydride CAS 89-32-7
highly quality and immedaite delivery
Name: Pyromellitic Dianhydride
Pyromellitic Dianhydride Chemical Properties
Melting point 283-286 °C(lit.)
Boiling point 397-400 °C(lit.)
density 1,68 g/cm3
refractive index 1.6000 (estimate)
Pyromellitic dianhydride is an organic compound with the formula C6H2(C2O3)2. It is the double carboxylic acid anhydride that is used in the preparation of polyimide polymers such as Kapton. It is a white solid.
It is prepared by gas-phase oxidation of 1,2,4,5-tetramethylbenzene (or related tetrasubstituted benzene derivatives). An idealized equation is:
1H,3H-Benzo[1,2-c:4,5-c‘]difuran-1,3,5,7-tetrone; benzene-1,2,4,5-tetracarboxylic dianhydride; BDFtetron; Pyromellitic anhydride; Piromellitic dianhydride;
Appearance & Physical State White powder
Density 1.68
Boiling Point 397-400ºC
Melting Point 283-287ºC
Flash Point 380ºC
Refractive Index 1.708
Water Solubility decomposes
Stability Stable under normal temperatures and pressures.
Storage Condition Store in a cool, dry place. Store in a tightly closed container.
Safety Info
RTECS DB9300000
Safety Statements S22-S24-S26-S37/39
HS Code 2917399090
Fp 380 °C
solubility Soluble in dimethyl sulfoxide, acetone, chloroform, ethyl ether, n-hexane and benzene.
form Fine Powder
color White to pale yellow
HS Code 29173980
Pyromellitic Dianhydride Usage And Synthesis
Chemical Properties White powder. Soluble in some organic solvents; hydrolyzes to the acid when exposed to moisture.
Uses Pyromellitic dianhydride (PMDA) is employed as a curing agent for epoxy agent resins used for casting, laminating, the manufacture of moulding powders, adhesives and coatings.
Uses pyromellitic dianhydride be used for preparation polyimide and epoxy resin material.
Hazard Skin irritant.
Purification Methods Crystallise the dianhydride from ethyl methyl ketone or dioxane. Dry, and sublime it in vacuo.[Beilstein 19 H 196, 19/5 V 407.]
Pyromellitic Dianhydride Preparation Products And Raw materials
Raw materials m-Xylene-->P-XYLENE-->Anthracene-->1,2,4-Trimethylbenzene-->Chromic acid-->1,2,4,5-Tetramethylbenzene-->N-PROPYLBENZENE-->tetramethylbenzene
Preparation Products 1,2,4,5-TETRACYANOBENZENE-->1,2,4,5-BENZENETETRACARBOXAMIDE-->PYROMELLITIC DIIMIDE-->Polyimide film
Synonyms: 1,2,4,5-Benzenetetracarboxylic 1,2:4,5-dianhydride;1,2,4,5benzenetetracarboxylic1,2:4,5dianhydride;1,2,4,5-benzenetetracarboxylic1,2:4,5-dianhydride;1,2,4,5-Benzenetetracrboxylicdianhydride;pyromelliticacidanhydride;pyromelliticaciddianhydride;Pyromelliticanhydride;1,2,4,5-BENZENETETRACARBOXYLIC ANHYDRIDE
CAS: 89-32-7
MF: C10H2O6
MW: 218.12
EINECS: 201-898-9
Details
5) Supply, technological advantages, etc.
Chemwill Asia co.,Ltd is one of the leading manufacturer in CHINA.Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Active pharmaceutical ingredients(APIs), Veterinary, Indole derivatives, Aromatics, Fluorine, Boronic acids, organocatalysts, chiral building blocks, heterocyclic compounds. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block as well as Tailor-made fine chemicals. Our manufactory specialised in extreme temperature conditions (-100oC to +300oC), hydrogenations reaction under high pressure, suzuki coupling reaction, photochemical reaction, Mitsunobu reactions, enantioselective reactions and asymmetric synthesis.we specialize in developing innovative processes for the synthesis of a wide range of products. we also undertake custom synthesis and contract manufacturing. We have Strong quality control system: Strength of our ethical commitment to quality control and quality assurance systems firmly based on ISO standard. QA and QC used in the whole process of raw materal control, process control and finished product quality inspection. Oue company has passed has passed the ISO9001:2008 .We have flexible payment terms with all of our clients: Various payment terms such as L/C,D/P,D/A and T/T will be accepted. we've been authorized the import&export qualification by the government and also has passed the “iso 9001-2008 quality management system” certification. Our company has strong R&D ability and production experience to provide the customers new APIs. We specialize in developing innovative processes for the synthesis of a wide range of products. We also undertake custom synthesis and contract manufacturing.we always stand on the quality of product as our life, develop in the direction of customers requirement and aim at creating greater value for customers.innovation and honesty, we will make common development with the masses of customers at home and abroad hand in hand by our best service.the aim of qdsigma is a quality policy that "elements in the system all have been satisfied, personnel has been trained; every batch of material is checked, each procedure guarantees the quality; every bag of our products is top grade, service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. the quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services. the aim of qdsigma is a quality policy that "elements in the system all have been satisfied, personnel has been trained; every batch of material is checked, each procedure guarantees the quality; every bag of our products is top grade, service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. the quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.our concept,1.client is first. 2.credibility is the most important.3.quality control is our life.4.great sense of responsibility.5.we will be responsible for not only our products, our clients, also the society.the corporation's slogan：reliable, professional, cooperative and innovative.the corporation's philosophy: widely absorb different excellent views and ideas from all over the world.the corporation's destination: we will constantly strive to supply customers with new and high-tech products and will keep the leadership in the field. Think Chemistry,Think CHemWill.
Chemwill Asia co.,Ltd is one of the leading manufacturer in CHINA.
Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Basic chemicals , Fine chemicals, Active pharmaceutical ingredients(APIs), Veterinary, Indole derivatives, Aromatics, Fluorine, Boronic acids, organocatalysts, chiral building blocks, heterocyclic compounds. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.
Our R&D team masters core technology for process-design of target building block as well as Tailor-made fine chemicals. Our manufactory specialised in extreme temperature conditions (-100ºC to +300ºC), hydrogenations reaction under high pressure, suzuki coupling reaction, photochemical reaction, Mitsunobu reactions, enantioselective reactions and asymmetric synthesis.
Think Chemistry,Think CHemWill
Factory Plant Address:
High-Tech Industrial park,Chemical Economical Development Zone,Xuzhou, Jiangsu-Province, P.R.China
Shanghai office: (Export Department)
Address: 16FL., INDUSTRY & COMMERCIAL BUILDING, NO.45 YAN’AN ROAD(E), 200002, SHANGHAI, CHINA