Phthalic anhydride
Maleic anhydride
2-ethylhexyl
Fumaric acid

Fumaric acid

Fumaric acid is maily used in the manufacture of synthetic resin and glass fiber-reinforced forced plastic with excellent heat stability and insulation function. It is also an important food industry raw material.
molecular formula: C4H4O4
molecular weight: 116.07
Packing: plastic bag lined woven bag, Net wt 25kg.
Structural Formula:

Item
Index
Top grade
First grade
Qualified product
Appearance
white crystalline powder
white or slight yellow powder
Total acidity /% ≥
99.5
99.0
98.5
Melting point °C ≥
285-293
285-293
285-293
Chroma (Pt-Co) ≤
50
80
120
Loss on drying % ≤
0.50
0.50
0.80
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