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Pyromellitic Dianhydride

Pyromellitic Dianhydride Structure
Pyromellitic Dianhydride structure
CAS No.
89-32-7
Chemical Name:
Pyromellitic Dianhydride
Synonyms
PMDA;Pyromellitic anhydride;Dicarboxylic anhydride;1,2,4,5-BENZENETETRACARBOXYLIC ANHYDRIDE;1,2,4,5-Benzenetetracrboxylicdianhydride;1,2,4,5-BENZENETETRACARBOXYLIC DIANHYDRIDE;PyromeL;BDFtetron;Benzo[1,2-c;itic dianhydride
CBNumber:
CB5267853
Molecular Formula:
C10H2O6
Molecular Weight:
218.12
MDL Number:
MFCD00005005
MOL File:
89-32-7.mol
MSDS File:
SDS
Last updated:2024-01-03 09:13:51
Request For Quotation

Pyromellitic Dianhydride Properties

Melting point 283-286 °C(lit.)
Boiling point 397-400 °C(lit.)
Density 1,68 g/cm3
vapor pressure 0Pa at 25℃
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
pka 5.45[at 20 ℃]
color White to pale yellow
Water Solubility decomposes
Sensitive Moisture Sensitive
BRN 213583
InChIKey ANSXAPJVJOKRDJ-UHFFFAOYSA-N
LogP -2.03 at 21.5℃
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)  GHS hazard pictogramsGHS hazard pictograms
GHS05,GHS08
Signal word  Danger
Hazard statements  H317-H318-H334
Precautionary statements  P261-P272-P280-P284-P302+P352-P305+P351+P338
Hazard Codes  Xn
Risk Statements  41-42/43
Safety Statements  22-24-26-37/39
WGK Germany  1
RTECS  DB9300000
F  10-21
TSCA  Yes
HS Code  29173980
NFPA 704
1
3 1

Pyromellitic Dianhydride price More Price(35)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 412287 Pyromellitic dianhydride 97% 89-32-7 100g $67.3 2024-03-01 Buy
Sigma-Aldrich 412287 Pyromellitic dianhydride 97% 89-32-7 500g $220 2024-03-01 Buy
TCI Chemical B0040 Pyromellitic Dianhydride >98.0%(T) 89-32-7 25g $18 2024-03-01 Buy
TCI Chemical B0040 Pyromellitic Dianhydride >98.0%(T) 89-32-7 100g $35 2024-03-01 Buy
Alfa Aesar 045788 Pyromellitic dianhydride, 98% 89-32-7 100g $62.65 2024-03-01 Buy
Product number Packaging Price Buy
412287 100g $67.3 Buy
412287 500g $220 Buy
B0040 25g $18 Buy
B0040 100g $35 Buy
045788 100g $62.65 Buy

Pyromellitic Dianhydride Chemical Properties,Uses,Production

Chemical Properties

White powder. Soluble in some organic solvents; hydrolyzes to the acid when exposed to moisture.

Uses

Pyromellitic dianhydride is used as a monomer in the preparation of polyimide polymers such as kapton; thermoplastics such as polyesters, polyethers, plasticizers, and expoxy resins. It is involved in the preparation of high performance coatings due to its mechanical, thermal and oxidative stability properties. It acts as a curing agent for epoxy resins which find application in adhesives, coatings and molding powders. As an intermediate, it plays an important role in polyimide based materials like printed circuit boards, tape automated bonding and magnetic wire insulation.

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.

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.

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.

General Description

Pyromellitic dianhydride (PMDA) is an acidic anhydride that can be used as a repair agent and as a chain extender in the formation of polyethylene terephthalate (PET) based chain extensions. It is mainly used in the production of thermoplastics and other coating applications.

Hazard

Skin irritant.

Flammability and Explosibility

Not classified

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 synthesis

89-05-4
89-32-7
Synthesis of Pyromellitic Dianhydride from Pyromellitic acid

Pyromellitic Dianhydride Preparation Products And Raw materials

Raw materials

1,2,4-Trimethylbenzene N-PROPYLBENZENE P-XYLENE m-Xylene Chromic acid
Anthracene tetramethylbenzene 1,2,4,5-Tetramethylbenzene

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Preparation Products

PYROMELLITIC DIIMIDE Polyimide film 1,2,4,5-BENZENETETRACARBOXAMIDE 1,2,4,5-TETRACYANOBENZENE 1,2,4,5-Cyclohexanetetracarboxylic Dianhydride
2,6-Bis(2-pyridinyl)benzo[1,2-c:4,5-c']dipyrrole-1,3,5,7-tetrone 2,6-Bis(3-hydroxyphenyl)-1,3,5,7-tetraoxo-1,2,3,5,6,7-hexahydrobenzo[1,2-c:4,5-c']dipyrrole 1,2,4,5-Benzenetetrakis(carbonyl chloride) 4-pmpmd 2,2-(1,3,5,7-tetraoxo-5,7-dihydropyrrolo(3,4-f)isoindole-2,6(1H,3H)diyl)dibenzoic acid

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Pyromellitic Dianhydride Suppliers

Global( 414)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Daeyeon Chemicals Co., Ltd
021-64478606 +8615900664856 daeyeon001@vip.163.com China 2062 58
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418671 sales@tnjchem.com China 34572 58
Junwee Chemical co., Ltd.
+86-571-85808636 +86-13958122542 sales@junweechem.com China 821 58
Hebei Mojin Biotechnology Co., Ltd 		+8613288715578 sales@hbmojin.com China 12456 58
Hebei Yanxi Chemical Co., Ltd. 		+8617531190177 peter@yan-xi.com China 5993 58
Shanghai Daken Advanced Materials Co.,Ltd 		+86-371-66670886 info@dakenam.com China 15928 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21691 55
Shanghai Time Chemicals CO., Ltd. 		+86-021-57951555 +8617317452075 jack.li@time-chemicals.com China 1807 55
Hangzhou FandaChem Co.,Ltd. 		008657128800458; +8615858145714 fandachem@gmail.com China 9348 55
Jiangsu Qingquan Chemical Co., Ltd. 		+86-571-86589381,86589382,86589383 sales1@qqpharm.com CHINA 154 55
Supplier Advantage
Shanghai Daeyeon Chemicals Co., Ltd
58
Hefei TNJ Chemical Industry Co.,Ltd.
58
Junwee Chemical co., Ltd.
58
Hebei Mojin Biotechnology Co., Ltd 		58
Hebei Yanxi Chemical Co., Ltd. 		58
Shanghai Daken Advanced Materials Co.,Ltd 		58
Henan Tianfu Chemical Co.,Ltd. 		55
Shanghai Time Chemicals CO., Ltd. 		55
Hangzhou FandaChem Co.,Ltd. 		55
Jiangsu Qingquan Chemical Co., Ltd. 		55

Related articles

  • What is Pyromellitic Dianhydride?
  • Pyromellitic dianhydride (PMDA) is an organic compound with the formula C6H2(C2O3)2. It is the double carboxylic acid anhydrid....
  • Dec 30，2019

View Lastest Price from Pyromellitic Dianhydride manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Pyromellitic dianhydride pictures 2024-04-26 Pyromellitic dianhydride
89-32-7
 US $0.00 / Kg/Drum 1KG 99% 500mt/year Jinan Finer Chemical Co., Ltd
1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone pictures 2023-12-15 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone
89-32-7
 US $458.00-4200.00 / g 1g 0.95&0.99 1000 PT CHEM GROUP LIMITED
Pyromellitic Dianhydride pictures 2023-09-11 Pyromellitic Dianhydride
89-32-7
 US $0.00 / kg 1kg 99% 20tons Hebei Yanxi Chemical Co., Ltd.

Pyromellitic Dianhydride Spectrum

Pyromellitic Dianhydride(89-32-7)MSPyromellitic Dianhydride(89-32-7)1HNMRPyromellitic Dianhydride(89-32-7)13CNMRPyromellitic Dianhydride(89-32-7)IR1Pyromellitic Dianhydride(89-32-7)IR2

89-32-7(Pyromellitic Dianhydride)Related Search:

Glutaric anhydride Erythromycin Estolate Allylbenzene Di-tert-butyl dicarbonate Succinic anhydride
3,3',4,4'-Biphenyltetracarboxylic dianhydride Pyromellitic acid Phthalic anhydride Ethylbenzene 3,4,9,10-Perylenetetracarboxylic dianhydride
Benzene 4,4'-Oxydiphthalic anhydride CIS-BUTENEDIOIC ANHYDRIDE PYROMELLITIC DIIMIDE Acetic anhydride
Dimethyl terephthalate Methyl 4-formylbenzoate m-Phthalaldehyde Pyromellitic Anhydride

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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 pyromelliticacidanhydride pyromelliticaciddianhydride Pyromelliticanhydride BENZENE-1,2,4,5-TETRACARBOXYLIC DIANHYDRIDE BENZENE-1,2,4,5-TETRACARBOXYLIC 1,2,4,5-DIANHYDRIDE PYROMELLITIC DIANHYDRIDE 1,2,4,5-Benzenetetracarboxylic anhydride,99% 1, 2, 4, 5-Benzenetetracarboxylic acid anhydride TIMTEC-BB SBB008218 1,2,3,4-Benzenetetracarboxylic dianhydride PYROMELLITIC DIANHYDRIDE (PMDA) 1,2,4,5-BENZENETETRACARBOXYLIC DIANHYDRIDE 97+% PYRYMELLITIC DIANHYDRIDE (PMDA) pyromellitic dianhydride, milled Pyromellitic dianhydride, [1,2,4,5-Benzenetetracarboxylic dianhydride] 1,2,4,5-BENZENE TETRACARBOXYLIC DIANHYDRIDE (PMDA, PYROMELLITIC DIANHYDRIDE) ,2,4,5-BENZENETETRACARBOXYLICANHYDRIDE PYROMELLITIC DIANHYDRIDE (1,2,4,5-BENZENETETRACARBOXYLIC ANHYDRIDE) 4,5-c]difuran-1,3,5,7-tetraone BDFtetron Piromellitic dianhydride Furo[3,4-f][2]benzoxole-1,3,5,7-tetrone 1,2,4,5-Benzenetetracarboxylic acid 1,2:4,5-dianhydride benzene-1,2:4,5-tetracarboxylic dianhydride benzene-1,2:4,5-tetracarboxylic dianhydride pyromellitic dianhydride 1,2,4,5-BENENETETRACARBOXYLIC ANHYDRIDE Benzene-1,2,4,5-tetracarboxylic dianhydride, PMDA 1,2,3,4-Benzetetracarboxylic dianhydride PYRROMELITICACIDDIANHYDRIDE benzenetetracarboxylic anhydride 1h,3h-benzo(1,2-c:4,5-c’)difuran-1,3,5,7-tetrone 1H,3H-Benzo[1,2-c,4,5-c’]difuran-1,3,5,7-tetrone 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone 1H,3H-Benzo[1,2-c:4,5-c’]difuran-1,3,5,7-tetrone Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetraone 1,2,4,5-BENZENETETRACARBOXYLIC-1,2:4,5-D 1,3-dioxo-1,3-dihydroisobenzofuran-5,6-dicarboxylic acid Pyromellitic dianhydride ,99.5% Pyromellitic dianhyd Benzo[1,2-c Pyromellitic acid anhydride Pyromellitic acid dianhydride pyromellitic1,2:4,5-dianhydride Pyromellitic Dianhydride (purified by sublimation) Pyromellitic dianhydride( PMDA) ,crystal,99.5% Pyromellitic dianhydride( PMDA) ,powder,99.5% 1,2,4,5-Benzenetetracarboxylic anhydride, 99% 100GR 1,2,4,5-Benzenetetracarboxylic anhydride, 99% 500GR 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone C10H4O7 Benzene-1,2,4,5-tetracarboxylic acid dianhydride Pyromellitic dianhydride, PMDA, 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone PyroMellitic dianhydride 97% PyroMellitic dianhydride, 99.5%, 99.5% Pyromellitic dianhydride( PMDA) ,99.5% Terephthalic acid anhydride itic dianhydride