Huafu Chemicals: Phthalic Anhydride Manufacturer
Purchasing Hotline:+86 15905996312
Huafu Chemicals: Phthalic Anhydride Manufacturer
Purchasing Hotline:+86 15905996312
Brand:
TaikeColor:
White Flaky CrystalsMin order:
20 tonLead Time:
20 daysProduct Composition
Phthalic anhydride is a white scaly or crystalline powder with a purity of more than 99.5%.
Product Production Process
The production process of o-xylene method is adopted: o-xylene is mixed with air and passes through the catalyst bed of the reactor to react to generate phthalic anhydride and by-products. The captured phthalic anhydride material goes through the continuous rectification process, and the qualified product enters the flake packaging.
Product Quality Index (GB/T15336-94)
Project |
Indicator |
||
Superior product |
First-class product |
Qualified product |
|
Appearance |
White scaly or crystalline powder |
White microstripes of other shades of scaly or crystalline powder |
|
Melting color number≤ |
20 |
50 |
100 |
Heat stable color number ≤ |
50 |
150 |
|
Crystallization point ℃≥ |
130.5 |
130.3 |
130 |
Purity% ≥ |
99.5 |
99.5 |
99 |
Free acid content%≤ |
0.5 |
0.5 |
0.5 |
Ash %≤ |
0.05 |
|
|
Transportation
Storage Conditions
Phthalic anhydride should be stored in a clean, cool, and dry warehouse, away from sunlight, not close to fire sources, and the storage temperature should not exceed 40 ℃.