PHTHALIC ANHYDRIDE White acicular crystal, flammable, easily sublimed below boiling point, with a slight odor.
| Items | Quality index | Test result |
| Specifications | ||
| Appearance | White flake or
Crystalline powder |
White flake or
Crystalline powder |
| Melting color(PtCo) ≤ | 20 APHA Max | 20 |
| Heating color(PtCo) ≤ | 50 APHA Max | 40 |
| Sulphuric acid colour index ≤ | 40 APHA Max | 10 |
| Solidification point ≥ | 130.5 Degree Min | 131.1 |
| Purity ≥ | 99.5% Min | 99.96 |
| Free acid ≤ | 0.2% Max | 0.06 |
Phthalic anhydride is widely used in chemical industry, medicine, electronics, agriculture, coatings, fine chemicals and in the production of plastic plasticizers, alkyd resins, dyes, unsaturated resins and some medicines and pesticides.other industrial sectors.
Pack:
25kgs/bag; 500kgs/bag; 600 kgs/bag.
