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Phthalic Anhydride
CAS NO.: 85-44-9
FOB Price: NEGOTIABLE Get Latest Price
Specification: 99.5%
Documentation:
Lead Time: In Stock
Max Capacity: 60000MT/Year
Pallets Packing 20'FCL 40'FCL
With Without With Without
500KG/Jumbo Bag
15 MT
15 MT
26 MT
26 MT
25KG/Woven Bag
14 MT
20 MT
26 MT
26 MT
Product Detail
Properties

Phthalic Anhydride


Performance and use

Phthalic anhydride, abbreviated as phthalic anhydride, white scaly or crystalline powder, molecular formula C8H4O3, molecular weight 148.12, melting point 131.1 ° C, boiling point 284.5 ° C, flash point 151 ° C (closed), 165 ° C (opening), self-ignition point 584 ° C , density (solid) 1.527g / cm3, difficult to dissolve in cold water, soluble in hot water, ethanol, ether, benzene and other organic solvents. Phthalic anhydride is a cyclic anhydride formed by dehydration of phthalic acid in the molecule, and is an important raw material in chemical industry, especially for the manufacture of plasticizers. Dibutyl phthalate and dioctyl phthalate are important plasticizers. Polycondensation of phthalic anhydride with polyols (such as glycerin, pentaerythritol) to form polyarylate resin for the paint industry; if polycondensed with ethylene glycol and unsaturated acid, it produces unsaturated polyester resin, which can be used to make insulating varnish and glass. Fiber reinforced plastic. Phthalic anhydride is also a raw material for the synthesis of benzoic acid and terephthalic acid, and is also used for drug synthesis.

Technical indicators

Indicator name

Index

Superior grade

First grade

Qualified product

Exterior

White scaly or crystalline powder

White microstrip squama or crystalline powder of other shades

Melt color, chromaticity number≤

20

50

100

Thermally stable chroma, chroma number ≤

50

150

Sulfuric acid color, color number ≤

40

100

150

Crystallization point,℃ ≥

130.5

130.3

130.0

Purity,% ≥

99.5

99.5

99.5

The mass fraction of free acid,% ≤

0.20

0.30

0.50


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10YRS
Business Type:
Manufacturing
Country/Region:
Henan, China
Contacts:
Wang Chengjie
Position Title:
General Manager
Tel:
0086-371-22656589
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