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Item | Value | Item | Value | ||
Product Name | P-phthalic acid | ||||
Another name | 1,4-dicarboxybenzene;PTA,Terephthalic acid | Chemical formula | C8H6O4;HOOCC6H4COOH | ||
Molecular weight | 166.131 | EINECS No. | 202-830-0 | ||
Melting point | 300 °C | Appearance | White Crystalline Powder | ||
Boiling point | 392.4ºC at 760 mmHg | Flashing point | >110℃ | ||
Solubility | 15mg/l (experimental) | Density | 1.55g/cm3 | ||
Vapour pressure | <0.01 mm Hg ( 20 °C) | Acidity coefficient | 3.51(at 25℃) | ||
Application | Manufacture of polyester resins, synthetic fibers, plasticizers, etc. | ||||
Sample | Free | ||||
Package | 1100 kg/bag,1200 kg/bag,customized package | ||||
Item | Value |
Acidity Mg of KOH/gm | 675±2 |
Moisture wt % | 0.2max |
Ashes ppm | 7max |
4 Carboxybenzaldehyde ppm | 20max |
Iron ppm | 0.5max |
Para Toluic Acid ppm | 120max |
Total metals Fe, Mn, Co, Cr,Ni,Mo,Ti ppm | 2max |










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