... No:9003-05-8H.S No:39069010Product Introduction: Polyacrylamide,addreviation PAM,is a glassy solid,apt to water absorbing;the speed ... oxygen.It could be made to four series,e.g.,non-ion,cation,anion and mixed cation & anion.Usage:It is ... -20.5-20.5-2Hydrolysis rate%≤5----5-35 polyacrylamide(anionic)