Good Quality Maleic Anhydride with 99% Purity CAS 108-31-6 From China

• Type: Dyestuff Intermediates
• Appearance: Crystal
• Quality: Industrial
• Colour: White
• Purity: 99.8
• Iron: 0.5
• Model NO.: Synthesis Material Intermediates
• 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 nature 
Colorless orthogonal acicular crystal or white crystalline powder. Soluble in water, acetone, benzene, chloroform and other organic solvents. Solubility in the following solvents at 25 ºC (gloog): acetone 227, ethyl acetate 112, chloroform 52.5 I benzene 50 I toluene 23.4; O-xylene 19.4; Carbon tetrachloride 0 60; Petroleum ether 0.25. Dissolve in alcohol to form ester. Soluble in dioxane. Sublimation by heat. In case of high heat, open fire or contact with oxidant, it may cause combustion. Corrosive. Slowly hydrolyze in cold water to form maleic acid. Contact with strong oxidants can cause combustion and explosion. If the temperature exceeds 66 ºC, polymerization will occur in contact with amines or alkali metals.

 

Molecular weight	98.0581
Density	1.48
Melting point	52-55ºC
Boiling point	200 °C (lit.)
Flash point	218 °F
Water solubility	79 g/100 mL (25ºC)
Vapor pressure	0.16 mm Hg ( 20 °C)