Product:purified terephthalic acid TPA Purity:99%min Packing:50kg/bag CAS:100-21-0 Product:purified terephthalic acid TPANAME terephthalic acid(PTA)QUANTITY 30TItemindex testing result Appearance White powderAcid mg KOH/g 675 ± 2 676Moisture ≤wt %0.2 0.14 Carboxybenzaldehyde ≤ppm2015Iron ≤ppm0.50.3Para Toluic Acid ≤ppm120110Total metals Fe, Mn, Co, Cr, Ni, Mo, Ti ≤ppm21.6Δ Y ≤108b-Color ≤1.51.2PH ...