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Pyromellitic Dianhydride

Application Preparation
Pyromellitic Dianhydride
Pyromellitic Dianhydride structure
CAS No.
89-32-7
Chemical Name:
Pyromellitic Dianhydride
Synonyms
PMDA;PyromeL;BDFtetron;Benzo[1,2-c;itic dianhydride;TIMTEC-BB SBB008218;Pyromellitic dianhyd;Pyromelliticanhydride;Pyromellitic anhydride;PYROMELLITIC DIANHYDRIDE
CBNumber:
CB5267853
Molecular Formula:
C10H2O6
Formula Weight:
218.12
MOL File:
89-32-7.mol

Pyromellitic Dianhydride Properties

Melting point:
283-286 °C(lit.)
Boiling point:
397-400 °C(lit.)
Density 
1,68 g/cm3
refractive index 
1.6000 (estimate)
Flash point:
380 °C
solubility 
Soluble in dimethyl sulfoxide, acetone, chloroform, ethyl ether, n-hexane and benzene.
form 
Fine Powder
color 
White to pale yellow
Water Solubility 
decomposes
Sensitive 
Moisture Sensitive
BRN 
213583
InChIKey
ANSXAPJVJOKRDJ-UHFFFAOYSA-N
Indirect Additives used in Food Contact Substances
PYROMELLITIC DIANHYDRIDE
CAS DataBase Reference
89-32-7(CAS DataBase Reference)
FDA UNII
2Z22T30QZQ
NIST Chemistry Reference
1,2,4,5-Benzenetetracarboxylic anhydride(89-32-7)
EPA Substance Registry System
1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone (89-32-7)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05,GHS08
Signal word  Danger
Hazard statements  H315-H303-H317-H318-H334
Precautionary statements  P264-P272-P302+P352+P333+P313+P363-P304+P340+P342+P311-P501-P280a-P305+P351+P338-P501a-P261-P280-P284-P304+P340-P305+P351+P338+P310
Hazard Codes  Xn
Risk Statements  41-42/43
Safety Statements  22-24-26-37/39
WGK Germany  1
RTECS  DB9300000
10-21
TSCA  Yes
HS Code  29173980

Pyromellitic Dianhydride price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 412287 Pyromellitic dianhydride 97% 89-32-7 100g $50.5 2019-12-02 Buy
Sigma-Aldrich 412287 Pyromellitic dianhydride 97% 89-32-7 500g $165 2019-12-02 Buy
TCI Chemical B0040 Pyromellitic Dianhydride >98.0%(T) 89-32-7 25g $14 2019-12-02 Buy
TCI Chemical B0040 Pyromellitic Dianhydride >98.0%(T) 89-32-7 100g $31 2019-12-02 Buy
Alfa Aesar 045788 Pyromellitic dianhydride, 98% 89-32-7 100g $37 2019-12-02 Buy

Pyromellitic Dianhydride Chemical Properties,Uses,Production

Application

Pyromellitic dianhydride (PMDA) has been used extensively as an important monomer in the preparation of a variety of thermoplastics such as polyesters, polycarbonates, polyethers polyethers, plasticizersplasticizers, expoxy resins, etc. Moreover, it is also useful in the preparation of high performance coatings that have been widely employed in many fields in our daily life beacuase of its excellent thermal, oxidative stability and excellent mechanical properties.
Pyromellitic dianhydride (PMDA) is one of several highly reactive acid anhydrides and used extensively in the production of thermoplastics and high-performance coatings. Anhydrides including PMDA are respiratory irritants and immediate-type sensitisers. Some anhydrides have been associated with occupational asthma. PMDA has also been related to occupational asthma.

Preparation

Pyromellitic Dianhydride is prepared by gas-phase oxidation of 1,2,4,5-tetramethylbenzene (or related tetrasubstituted benzene derivatives). An idealized equation is:
C6H2(CH3)4 + 6 O2 → C6H2(C2O3)2 + 6 H2O
In the laboratory, it can be prepared by dehydration of pyromellitic acid using acetic anhydride.

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

Preparation Products


Pyromellitic Dianhydride Suppliers

Global( 290)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23979 58
Jiangsu Qingquan Chemical Co., Ltd.
+86-571-86589381/86589382/86589383
lyy@qqpharm.com sales1@qqpharm.com CHINA 154 55
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28235 58
HENAN BON INDUSTRIAL CO.,LTD
0371-55170695
info@hnbon.com CHINA 20537 58
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21811 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22631 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com CHINA 1365 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 2368 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30052 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 14154 58

Related articles


View Lastest Price from Pyromellitic Dianhydride manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-08-20 Pyromellitic Dianhydride 89-32-7 PMDA
89-32-7
US $3.59 / KG 1KG 99.50% IN STOCK 5000 MT per month Chemwill Asia Co.,Ltd.
2019-08-20 89-32-7 PMDA Pyromellitic Dianhydride
89-32-7
US $5.56 / KG 1KG 99.50% IN STOCK 5500 MT per month Chemwill Asia Co.,Ltd.
2019-08-20 Pyromellitic Dianhydride
89-32-7
US $2.55 / KG 1KG 99.50% IN STOCK 8500 MT per month Chemwill Asia Co.,Ltd.

Pyromellitic Dianhydride Spectrum


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