... dry type Polyaluminium Chloride (PAC,Yellowish powder): 1.Chemical Name:Polyaluminium Chloride(PAC)Synonyms :Aluminium chlorhydroxide;Aluminium chloride basic;Aluminium chlorohydrol ... 3.Detailed Product Description : PAC-1 grade, Poly aluminum Chloride yellow powder, made from Ca(AlO3)2 and bauxite. ... solution):3.5 ~ 5.0 PAC-2 grade, Polyaluminum Chloride yellow powder, made from Ca(AlO3)2 and bauxite. ...