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Phthalic Anhydride
Phthalic Anhydride
Product Name: Phthalic Anhydride (PA)
CAS Number: 85-44-9
Molecular Formula: C8H4O3
Specifications:
|
Grades Items |
Top Grade |
First Grade |
|
Appearance |
white scaly or crystalline powder |
|
|
Fused Chroma (Chroma No.), maximum |
20 |
50 |
|
Chroma of Thermal Stability (Chroma No.), maximum |
50 |
150 |
|
Chroma of Sulphuric Acid (Chroma No.), maximum |
60 |
100 |
|
Crystallization Point, ℃ minimum |
130.5 |
130.3 |
|
Purity, % minimum |
99.5 |
99.5 |
|
Free Acid, % maximum |
0.20 |
0.30 |
|
Ash, % maximum |
0.05 |
- |
Usage: As an important organic chemical material, it is mainly used for the production
of plastic plasticizers, alkyd resins, dyes, unsaturated resins and some medicines and
pesticides.
Packing: 25 KGS/ woven bags with inner plastic bag or upon customer's demands.