... a novel highly effcient inorganic polymer coagulant.PAC-2 is made of aluminium hydroxide,hydrochloric ... Technical indexesSpray dried ItemsSpray dried process –PAC PAC 3PAC -2B PAC -2 PAC-1 AppearanceYellow powderLight yellow powder Light ... 3.5-5.0 Ammoniacal nitrogen %, ≤0.01 0.01 0.01 0.01 Fe, %, ≤ 0.80.60.30.0031As, ... .19SO2- %, ≤ -- -Ammoniacal nitrogen %, ≤0.01 0.01 0.01 0.01 Fe, %, ≤ 2.0-3.02.0-3.00 ...