... located in China mainland PAC can be used as a flocculants for all water treatmentPACSpecifications of Spray dried process: AppearanceLight yellow powderRelative density ... .00001---Pb,%, ≤0.001---Cd,%, ≤0.0002--- Specifications of Roller dried process: AppearanceLight yellow powderRelative density( 20 )-AL 2 O 3, ≥, % ... periodFlood periodDosage5-1020-10010-5050-200200-5002-3 polyaluminium Chloride PAC