Polyaluminium Chloride(PAC) for Waste water 1 Appearance:solid powder, yellow/white 2.High quality , ... . It is widely used in the industrial waste purification, the industry circulating water purification and also the city sewage purification. ... + %, ≤-0.0005Hg %, ≤-0.00001Pb %, ≤0.0060.006Cd %, ≤-0.0002Applicationindustrial/waste water treatmentPackage25 kg net each plastic woven bag,lined with PE ...