99.5% Maleic Anhydride CAS 108-31-6 with Best Price Made in China

• CAS No.: 108-31-6
• Formula: C4H2O3
• EINECS: 203-571-6
• Type: Dyestuff Intermediates
• Appearance: Crystal
• Quality: Industrial
• Model NO.: Synthesis Material Intermediates
• Colour: White
• Purity: 99.8
• Iron: 0.5
• Soildification Point: 52.6
• Boiling Point: 202
• Flash Point: 103
• Melting Point: 54
• Density: 1.484
• Molecular Weigh: 98.057
• Appearance Characteristics: White Crystal
• Transport Package: 25kg/Bag
• Trademark: runze
• Origin: China
• HS Code: 2917140000
• Production Capacity: 30000tons/Year

Product Description

 

Product Description

 

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. 
 

Product Parameters

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.

Maleic Anhydride
Characteristics	Units	Guaranteed Values	Results
Purity(by MA)	WT%	99.5 min	99.71
Molten Colour	APHA	25 Max	13
Solidifying Point	ºC	52.5 Min	52.5
Iron	PPM	3 Max	0.32
Maleic Acid	WT%	≤0.5	0.29
Ash	WT%	0.005 Max	<0.001
Appearance		White briquettes	White briquettes

Detailed Photos

 

Packaging & Shipping

25kg  plastic woven bag, lined with plastic bag ,20tons/FCL