potassium polyacrylate (Chemical Abstracts Services or CAS Registry No. 25608-12-2), sodium polyacrylate (CAS No. 9003-04-7), and polyacrylamide (CAS No. 9003-05-8). sodium polyacrylate or sodium polyacrylate-acrylamide copolymer Chemical name : Acrylic Acid, Polymer, Sodium Salt