Phthalic anhydride, 99.5%
Our product have several outstanding properties than other type, like Korean PA.
1. General chemical, non-hazard chemical type which saving lots of custom clear procedure and shipping cost
2. Higher purity, can reach to 99.95%~99.99%, which lead more mass balance to count.
3. Fewer benzoic acid, 0.03% in bypass << 0.2% as normal, no worry the difficulty of removing acids, which lead to any corrosions in pipes and equipment extending its lifespan.
4. No maleic anhydride in by-product, who is low melting point, no fouling forming in package especially in hot season
5. No naphthoquinone, which widely used for UPR, Polyester and plasticizer.
6. Plenty of raw material in China, fully running in the plant keeping stable supply source and long-term cooperation.
Phthalic anhydride Chemical Properties |
| Melting point | 131-134 °C(lit.) |
| Boiling point | 284 °C(lit.) |
| density | 1,53 g/cm3 |
| vapor density | 5.1 (vs air) |
| vapor pressure | <0.01 mm Hg ( 20 °C) |
| Fp | 152 °C |
| storage temp. | Store at RT. |
| Water Solubility | 6 g/L (20 ºC) |
| Sensitive | Moisture Sensitive |
| Merck | 14,7372 |
| BRN | 118515 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, strong bases, moisture, strong acids. Dust may form an explosive mixture with air. |
