Maleic Anhydride

Product Name:Maleic Anhydride

CAS No.:108-31-6

EINECS No.:203-571-6

Molecular Formula:C4H2O3

Molecular Weight:98.06

Basic Information

Product Name Maleic Anhydride
CAS No. 108-31-6
EINECS No. 203-571-6
Molecular Formula C4H2O3
Molecular Weight 98.06
Melting Point 51-56 ℃
Boiling Point 202 ℃
Flash Point 103.3 ℃
Density 1.484 g/cm³
Appearance White Crystal
Application Chemical Auxiliary Agent
HS Code 2917140000


Detailed Parameters

Characteristics Units Guaranteed Values Results
Appearance  / White Crystal White Crystal
Purity(by MA) WT% 99.5  min 99.71
Molten Colour APHA 25  Max 13
Solidifying Point ºC 52.5  Min 52.7
Ash WT% 0.005 Max <0.001
Iron PPM 3  Max 0.32

Production Description

Maleic anhydride, also known as maleic anhydride, maleic anhydride, 2,5-furandione and so on.Oblique crystal colorless acicular or lamellar crystals. Has a strong stimulating odor, soluble in ethanol, ether and acetone, insoluble in petroleum ether and carbon tetrachloride. Maleic acid with hot water. Mainly used in the production of unsaturated polyester resin, alkyd resin, pesticide malathion, high efficiency and low toxicity pesticide 4049, long-acting iodine amine raw materials.It is also a paint, Malay Rosin, polymaleic anhydride, maleic anhydride – styrene copolymer copolymer monomer, but also the production of ink additives, paper additives, plasticizers, tartaric acid, fumaric acid, tetrahydrofuran and other organic chemical raw materials .



  • In the pharmaceutical industry,it is used to manufacture long-acting sulfa drugs. The pesticide industry is used to manufacture pesticide marathon, high-efficiency and low toxicity pesticide 4049, etc.
  • It is used in the production of unsaturated polyester resin, ink additives, papermaking additives, coatings, pharmaceutical industry, food industry, etc.
  • In the coating industry,itis used to manufacture insulating paint, white enamel, baking paint, varnish, etc.


Packaging & Storage

  • 25kg/bag with pallet, 20MT/20’FCL;
  • 25kg/bag without pallet, 22-25MT/20’FCL.



Q: What is yourpayment terms?
A: T/T and L/C.

Q: What is yourminimum order quantity?
A: 20’FCL container.

Q: Which kind of package do you have?
A: Iron drums, IBC Drums, FlexiTank, ISO TANK and bags.

Q: How can I get samples?
A: We provide you samples for free, but you have to bear the expense of the courier charges.

Q: How long is your delivery?
A: Within 12 days after receiving the T/T deposit or L/C original.