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¢Â APPLICATION
MAH is a dicarboxylic unsaturated acid which readily reacts with glycols, hydrogen, water, hydrazine, amines, alcohols, olefin, diens, and petroleum resins.
It¡¯s representative end-use is to make unsaturated polyester resins.
End-Use
Unsaturated polyester resin
Unsaturated polyester resins are the largest outlets for
maleic anhydride. They are produced by the reaction of dibasic
acids (or anhydrides) such as phthalic anhydride, maleic
anhydride or isophthalic acid with one or more glycols. In
most applications, they are combined with various forms of
glass fiber to produce so-called fiberglass-reinforced plastics
(FRP).
Fumaric acid
Fumaric acid is produced by the isomerization of maleic
acid via maleic anhydride. In the past, fumaric acid was
also produced using fermentation of molassed, but this is
no longer in commercial use.
The Primary applications for fumalic acid are a paper size
resins : these sizing materials are applied to paper to improve
or increase the paper¡¯s stiffness, strength, smoothness or
weight.
Agricultural Chemical
Several commercially import pesticides, herbicides and growth
regulators require maleic anhydride as a key raw material
in their preparation. Representative agricultural chemical
are as follows; Malathon, Maleic Hydrazine, Captan, Endothall,
Difolatan, and Alar.
1.4-Butanediol (1.4-BDO)
Refer to application of 1.4-Butanediol
¢Â PRODUCT SPECIFICATION
MALEIC ANHYDRIDE (MAH)
Molecular Weight 98.06
Viscosity (CP) 1.5(70¡É)
Specific Gravity 1,314(60¡É)
Freezing Point(¡É) 52.5 min
Boiling Point(¡É) 202
Falsh Point(¡É) 110
Peroxide Content
Colour(APHA) 20 max.
Water(wt%) -
Purity(wt%) 99.5 min.
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