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M188

Sigma-Aldrich

Maleic anhydride

99%

Synonyme(s) :

2,5-Furandione

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About This Item

Formule empirique (notation de Hill):
C4H2O3
Numéro CAS:
108-31-6
Poids moléculaire :
98.06
Numéro Beilstein :
106909
Numéro CE :
203-571-6
Numéro MDL:
MFCD00005518
Code UNSPSC :
12162002
ID de substance PubChem :
24896701
Nomenclature NACRES :
NA.23

Densité de vapeur

3.4 (vs air)

Pression de vapeur

0.16 mmHg ( 20 °C)

Pureté

99%

Température d'inflammation spontanée

870 °F

Limite d'explosivité

7.1 %

Point d'ébullition

200 °C (lit.)

Pf

51-56 °C (lit.)

Chaîne SMILES 

O=C1OC(=O)C=C1

InChI

1S/C4H2O3/c5-3-1-2-4(6)7-3/h1-2H

Clé InChI

FPYJFEHAWHCUMM-UHFFFAOYSA-N

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Description générale

Maleic anhydride (MA) belongs to the class of monomers known as cyclic dicarboxylic anhydrides. It is commonly used in polymerization reactions to produce various types of polymers such as poly(maleic anhydride) (PMA), maleic anhydride-based resins, and maleic anhydride-butadiene copolymers (MABS), etc. These MA-based polymers find applications in various fields including, polymer blends and coatings, epoxy resins, semiconductor devices, secondary batteries, lithium-ion batteries, resin films, glass fiber, coatings, packaging, water treatment, and drug delivery systems. Additionally, MA can be grafted onto other polymers, to enhance their performance and compatibility with other materials. Grafted polymers find applications in the automotive, packaging, and construction industries. Maleic anhydride is also used as an electron-acceptor monomer in the development of various antimicrobial polymers due to their reactive double bonds and reactive anhydride groups.

The structure of maleic acid consists of four carbon molecules along with carboxylate groups on either ends, with a double bond between the central carbon atoms. The anhydride of maleic acid has five atoms in its cyclic molecule, the unsaturated bond undergoes free radical polymerization in the presence of an initiator.

Application

Maleic anhydride can be used as a monomer:
  • In the grafting process of high-density polyethylene (HDPE) by the monomer microencapsulation technique, which enables the introduction of enhanced functionality and improved properties to the polymer for functional coatings, membranes, or surface treatments, adhesives, and coatings.
  • In the functionalization of polylactic acid (PLA) and acts as a coupling agent in natural fiber biocomposites. The functionalization improves the compatibility and interfacial adhesion between PLA and natural fibers, leading to enhanced mechanical properties and expanded applications of the resulting biocomposite materials.
  • Maleic anhydride may be used in the synthesis of unsaturated polyester resins and as a reactant in synthesizing important products such as agricultural chemicals, lubricant additives, and food acidulatents.

Forme physique

briquettes

Pictogrammes

Health hazardCorrosionExclamation mark
GHS08,GHS05,GHS07

Mention d'avertissement

Danger

Mentions de danger

H302,H314,H317,H334,H372

Classification des risques

Acute Tox. 4 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1A - STOT RE 1 Inhalation

Organes cibles

Respiratory system

Risques supp

EUH071

Code de la classe de stockage

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

217.4 °F - closed cup

Point d'éclair (°C)

103 °C - closed cup

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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