... . in water , %27.0-35.0Potassium content, %≥11.0Chlorine ion %≤7.0Intrinsic viscosity, 100ml/g≥6.0Core linear dilatation slip, %≥40 ... qualified if out of expiration.Key Words:K-PAM, Potassium PolyAcrylate, Potassium PolyAcrylamide Potassium Polyacrylate (K-PAM)