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ChemicalBook > Product Catalog >Organic Chemistry >Carboxylic acids and derivatives >Carboxylic Acid Anhydrides >Pyromellitic Dianhydride

Pyromellitic Dianhydride

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
MOL File:
89-32-7.mol
MSDS File:
SDS
Modify Date:
2024/12/27 17:26:58
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℃
CAS DataBase Reference 89-32-7(CAS DataBase Reference)
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  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
Hazardous Substances Data 89-32-7(Hazardous Substances Data)
NFPA 704
1
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Pyromellitic Dianhydride price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 412287 Pyromellitic dianhydride 97% 89-32-7 100G ₹2208.3 2022-06-14 Buy
Sigma-Aldrich(India) 8.07516 1,2,4,5-Benzenetetracarboxylic-1,2:4,5-dianhydride for synthesis 89-32-7 100G ₹2980.01 2022-06-14 Buy
Sigma-Aldrich(India) 412287 Pyromellitic dianhydride 97% 89-32-7 500G ₹8616.7 2022-06-14 Buy
ALFA India ALF-045788-A3 Pyromellitic dianhydride, 98% 89-32-7 2kg ₹58380 2022-05-26 Buy
TCI Chemicals (India) P2103 Pyromellitic Dianhydride (purified by sublimation) 89-32-7 5G ₹2500 2022-05-26 Buy
Product number Packaging Price Buy
412287 100G ₹2208.3 Buy
8.07516 100G ₹2980.01 Buy
412287 500G ₹8616.7 Buy
ALF-045788-A3 2kg ₹58380 Buy
P2103 5G ₹2500 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 (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.

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

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( 431)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
JSK Chemicals +919879767970 Gujarat, India 3753 58 Inquiry
CLEARSYNTH LABS LTD. +91-22-45045900 Hyderabad, India 6257 58 Inquiry
TCI Chemicals (India) Pvt. Ltd. 1800 425 7889 New Delhi, India 6768 58 Inquiry
Otto Chemie Pvt. Ltd. +91 9820041841 Mumbai, India 5870 58 Inquiry
Alfa Aesar 1 800 209 7001 Maharashtra, India 6905 58 Inquiry
P.C. Chem India 08046049725 Mumbai, India 134 58 Inquiry
High Grade Industries India Private Limited 08068442243Ext 698 Mumbai, India 14 58 Inquiry
Molychem 08048372666Ext 559 Mumbai, India 576 58 Inquiry
Cosmos Plastics & Chemicals 08048952195 Mumbai, India 13 58 Inquiry
ALTAIR ALCHEMY Laboratories 91--9014276848 Hyderabad, India 324 58 Inquiry
Supplier Advantage
JSK Chemicals 58
CLEARSYNTH LABS LTD. 58
TCI Chemicals (India) Pvt. Ltd. 58
Otto Chemie Pvt. Ltd. 58
Alfa Aesar 58
P.C. Chem India 58
High Grade Industries India Private Limited 58
Molychem 58
Cosmos Plastics & Chemicals 58
ALTAIR ALCHEMY Laboratories 58

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

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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