Maleic Anhydride; Maleic Acid Anhydride; Furan-2,5-dione; Toxilic Anhydride (MA) C4H2O3 CAS 108-31-6

Maleic Anhydride; Maleic Acid Anhydride; Furan-2,5-dione; Toxilic Anhydride (MA) C4H2O3 CAS 108-31-6

Maleic anhydride is the anhydride of maleic acid. It is a white crystal with strong pungent odor at room temperature. Its molecular formula is C4H2O3.
Packing: 25kg/bag.
Purity: 99.5%.
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Description
Technical Parameters
Introduction

 

Name: Maleic anhydride

CAS No: 108-31-6

Molecular Formula: C4H2O3

Maleic anhydride sublimes when heated. In case of high heat, open fire or contact with oxidant, there is a risk of combustion. Corrosive. It is slowly hydrolyzed in cold water to produce maleic acid. Contact with strong oxidizers can cause combustion and explosion. If the temperature exceeds 66℃, the polymerization reaction will occur in contact with amines or alkali metals.

 

Specifications

 

Inspection Items

Standard

Purity %

≥ 99.5

Molten color(Hazen)

≤ 25

Melting Point /℃

≥ 52.5

Ignition residue %

≤ 0.005

Iron(Fe)/(ppm)

≤ 2

 

Packing: 25kg/bag.

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Application

 

Maleic anhydride is mainly used in the manufacture of polyester resins, alkyd resins, pesticides, fumaric acid, and paper treatment agent.

 

Chemical & physical properties

 

Molecular formula

C4H2O3

Molecular weight

98.057

CAS NO

108-31-6

EINECS NO

203-571-6

Density

1.484 g/cm³

Appearance

White crystals or needles

Flash point

103 ℃

Melting point

51-56℃

Boiling point

202℃

Water Solubility

React to maleic acid

 

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