Purified Terephthalic acid (PTA) is one of the important bulk organic raw materials, widely used in chemical fiber, light industry, electronics, construction and other aspects of the national economy.
Item | Results | Units | |
Acid number | 675. 4 | mg KOH/g | |
Ash | 2 | mg/kg | |
Total significant metals(Fe, Co, Cr, Mn,Mo, Ni,Ti) | 0. 1 | mg/kg 1 | |
Iron | 0. 01 | mg/kg | |
4-CBA | 14 | ppm | |
Paratoluic acid | 123 | mg/kg | |
Moisture | 0.12 | wt% | |
△Y | 3 | ||
b* | 0. 92 | ||
Median Particle Size | 134 | um | |
Particle size distribution, >250 5 | 16. 6 | % | |
Particle size distribution,〈45 5 | 12 | % | |
Appearance | White dry Free-flowing crystals | ||
It is an important raw material for the manufacture of polyester resin, film, fiber, insulating paint and engineering plastics.