| Customization: | Available |
|---|---|
| CAS No.: | 108-31-6 |
| Formula: | C4H2O3 |
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Maleic anhydride is colorless crystal with strong pungent smell. Its freezing point is 52.8 ºC, boiling point is 202 ºC, and it is easy to sublimate. It is mainly prepared by oxidation of n-butane or butene in benzene or C4 fraction. It is the raw material for unsaturated polyester production and organic synthesis.
Used mainly for synthesizing unsaturated polyester resins, coatings, pharmaceutics, pesticides, lubricating oil additives, foodstuff additives etc.
At room temperature, it is a white flaky crystal with irritant odour and sour, inflammable and sublimating. It can be freely dissolved in water to form maleic acid. It has a specific density of 1.480, a melting point of 52.85 °C, and a boiling point of 202°C.
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Maleic Anhydride
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Characteristics
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Units
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Guaranteed Values
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Results
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Purity(by MA)
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WT%
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99.5 min
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99.71
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Molten Colour
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APHA
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25 Max
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13
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Solidifying Point
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ºC
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52.5 Min
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52.5
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Iron
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PPM
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3 Max
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0.32
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Maleic Acid
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WT%
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≤0.5
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0.29
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Ash
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WT%
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0.005 Max
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<0.001
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Appearance
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White briquettes
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White briquettes
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25kg plastic woven bag, lined with plastic bag ,20tons/FCL
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