Maleic anhydride 99.5

Short Description:

● Maleic anhydride (C4H2O3) with a strong pungent odor at room temperature.
● Appearance white crystal
● CAS number: 108-31-6
● Solubility: soluble in most organic solvents such as water, acetone, benzene, chloroform, etc.

Product Detail

Product Tags

Technical indicators

Characteristics Units Guaranteed Values Results
Appearance   White briquettes White briquettes
Purity(by MA) WT% 99.5 min 99.71
Molten Colour APHA 25 Max 13
Solidifying Point 52.5 Min 52.5
Ash WT% 0.005 Max <0.001
Iron PPM 3 Max 0.32
Maleic Acid WT% ≤0.5 0.29
Note: Appearance—White briquettes is about 80%,Flakes and power is about 20%

Product Use Description

Maleic anhydride is an important basic raw material of unsaturated organic anhydrides. It is used in the production of pesticides to synthesize diethyl maleate, the intermediate of organophosphorus insecticide malathion, 1-phenyl-3,6-dihydroxypyridazine, the intermediate of pyridazinon, and the intermediate of pyrethroid insecticide pyrethroid, fungicide, and captan. In addition, it is also used in the production of unsaturated polyester resin, ink additives, paper additives, coatings, and pharmaceutical industry Food industry, etc.

Handling and Storage

Operation precautions: closed operation, local exhaust. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter dust masks, chemical safety goggles, rubber acid and alkali resistant clothing, and rubber acid and alkali resistant gloves. Keep away from fire and heat sources, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Avoid generating dust. Avoid contact with oxidizing agents, reducing agents, acids. When handling, it should be lightly loaded and unloaded to prevent damage to packaging and containers. Equipped with the corresponding variety and quantity of fire fighting equipment and leakage emergency treatment equipment. Empty containers may be harmful residues.
Storage Precautions: Store in a cool, dry, well-ventilated warehouse. Keep away from fire and heat sources. Keep container tightly closed. It should be stored separately from oxidants, reducing agents, acids, and edible chemicals, and should not be mixed. Equipped with the appropriate variety and quantity of fire equipment. Storage areas should be provided with suitable materials to contain spills.

Product packing

maleic anhydride
maleic anhydride

1.pp woven bag (lined with PE film) packaging 25kg/bag

2.FIBC bag/ 1000kg


20FCL=22MT(without pallets)


1) Can we print our logo on the product ?
Of course, we can do it. Just send us your logo design.
2) Do you accept small orders ?
The MOQ is one 20`container.Because Maleic anhydride is a dangerous chemical it cannot be shipped in LCL,If you only want a few tons, you also need to bear the sea freight of the whole container,so buying a whole container is more appropriate.
3) How about the price? Can you make it cheaper ?
We always take the customer’s benefit as the top priority. Price is negotiable under different conditions, we are assuring you to get the most competitive price.
4) Do you offer free samples ?
Of Course.
5) Are you able to deliver on time?
Of course!we specialised in this line for many years,many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!
6) What are your payment terms ?
We usually accept T/T, Western Union, L/C.

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