... 2. Yellow powder, white powder 4,ISO9001 5,drinking water,industrial water Poly Aluminium Chloride (PAC)DescriptionAL2O3: 30%MINAppearance: Yellow powder3. Polyaluminium Chloride, PAC(the brief name gather aluminum ... aluminum, flocculant, PAC)[Molecular formula] [AL2(OH)LnCL6-n]m4. PAC is a new type inorganic polymer coagulant. It is lie in the AlCl3 and Al(OH)3 ...