Dioctyl phthalate(DOP)
          Dibutyl phthalate (DBP)
          Diisobutyl phthalate(DIBP...
          Trioctyl citrate
          Tributyl citrate
          Phthalic anhydride
          Dioctyl adipate
          Dibutyl Adipate
          Dioctyl sebacate
          Dibutyl sebacate
          3GO
          Isocaprylic acid
          More
 
  Products

Properties and uses

white scaly or Crystalline powder, Molecular formula C8H403, Molecular weight 148.12, Melting point 131.1l ℃, Boiling point 284.5 ℃, Flash point 151 ℃ (close), 165 ℃ (open), Spontaneous combustion point 584 ℃, Density (Solid) 1.527g / cm3, insoluble in water, soluble in water, alcohol, ether, benzene and most organic solvents. Phthalic anhydride is a cyclic anhydride, is an important chemical raw material, especially for plasticizer manufacturing. Dibutyl phthalate, Dioctyl phthalate are important plasticizers. Phthalic anhydride and polyols (such as glycerol, pentaerythritol) can generate polyarylate resin in condensation way, used in paint industry; if an unsaturated acid with ethylene glycol happening condensation, the resulting chemicals is unsaturated polyester resin, for the manufacturing of insulating paint and glass fiber reinforced plastics . Phthalic anhydride is a raw material of benzoic acid, terephthalic acid, also used in pharmaceutical synthesis.

Technical index

Index name
Index
Top grade
First grade
Qualified product
Appearance
white scaly or Crystalline powder
white scaly or Crystalline powder with other colors
Melting Chroma, Chroma # ≤
20
50
100
Thermal stability Chroma, Chroma # ≤
50
150
Sulfuric acid Chroma, Chroma # ≤
40
100
150
Crystallization point, ℃ ≥
130.5
130.3
130.0
Purity, % ≥
99.5
99.5
99.5
Mass fraction of free acid, % ≤
0.20
0.30
0.50

Copyright(C)2015,  Copyright Notice Admin