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
Quality standards of fumaric acid Q/SBLCJ02-4042005

Item

Index

Top grade

First grade

Qualified product

Appearance

white crystalline powder

white or slight yellow powder

Total Acid%≥

99.5

99.0

98.50

Melting point°C≥

285~293

282~293

282 ~293

Chroma(Co-Pt)(Pt-Co)≤

50

80

120

Loss on dry %≤

0.50

0.50

0.80

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