China Purified Isophthalic Acid (PIA), Find details about China Isophthalic Acid, Pia from Purified Isophthalic Acid (PIA)
| Item | Specification | Results |
| Purity (% w/w) | 99.8% min | 99.9 |
| Acid number (mg KOH/gm) | 675±2 | 675.01 |
| 3-CBA (ppm w/w) | 25 max | 0.2 |
| m-Toluic acid (ppm w/w) | 150 max | 76 |
| Water (pct w/w) | 0.1 max | 0.04 |
| B (color) | --- | -0.75 |
| Ash (ppm w/w) | 15 max | 3 |
| Metals (ppm w/w) | None greater than 1 and in total max 10 | None greater than 0.1 and in total max 2 |