Phthalic anhydride
Maleic anhydride
2-ethylhexyl
Fumaric acid

Dibutyl phthalate for industrial use

Is an important organic chemical material, mainly used in unsaturated polyester resin, paint, paper treatment agent, medicine, food additives and artificial leather, marble and so on.
Appearance: white, slight yellow lumpy or flaky crystal
Molecular Formula: C4H2O3
Molecular weight: 98.06
Packing: plastic bag lined woven bag, Net wt 25kg
Structural Formula:

Item
Index
Top grade
Qualified product
Mass fraction of Maleic anhydride(as C4H2O3) ≥
99.5
99.0
Fused chroma/Hazen (Pt-Co)
25
50
Crystallization point, °C ≥
52.5
52.0
Mass fraction of residue on ignition % ≤
0.005
Mass fraction of Fe (as Fe)(ug/g) ≤
3
-
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