It is the white powder. The APAM with the molecular weight of 4,000,000-26,000, ... Anionic Polyacrylamide Anionic Polyacrylamide: It is the white powder. The APAM with the molecular weight of 4,000,000-26,000 ... after the treatment of the precipitation and filtering, then the APAM can be used as the flocculants. Its dosage is 2 ...