Products
Purified Terephthalic Acid (PTA)
Product Parameter
| CAS | 9029-91-8 |
| Molecular Formula | C₈H₆O₄ |
| Molecular Weight | 0 |
| EINECS | 232-855-2 |
| Storage Conditions | -20°C |
| Morphology | Lyophilized powder |
| Specific Activity | ≥3,000units/mg protein (biuret) |
| Item | Index | Unit | Value | Analytical Methods |
| Lot Number | / | / | SR2025031201 | / |
| Appearance | White Powder | / | White Powder | Visual Inspection |
| Purity | ≥99.9 | % | 99.95 | GC |
| Acid Value | 675±2 | mgkoH/g | 675.1 | / |
| Chroma | ≤10 | APHA | 5 | Spectrophotometry |
| Moisture Content | ≤0.1 | % | 0.05 | Karl Fischer Method |
| Ash Content | ≤0.001 | % | 0.01 | Ignition Method |
| Iron Content | ≤1 | ppm | 0.5 | ICP-MS |
| 4-CBA Content | ≤25 | ppm | 20 | HPLC |
| p-TA Content | ≤150 | ppm | 120 | HPLC |
| Inspection Conclusion: It complies with the requirements of the GB/T 32685-2016 standard | ||||