Hydrolyzed Polyacrylonitrile sodium salt Na-HPAN Na-HPAN,Filtration reducer water ... of several polymers such as acrylamide and sodium acrylate acrylonitrile.Na-HPAN, hydrolysis product of polyacrylonitrile ... add sodium hydroxide, is yellowish powder, soluble in water, ... comHenan Kingway Chemicals Co., Ltd. Hydrolyzed Polyacrylonitrile sodium salt Na-HPAN