Water soluble Polyelectrolyte Cationic is used to raise viscosity of water by enhancing its thickness or by enhancing flocculation of substances present in fluid. This chemical is used for clarification, sedimentation and flocculation sedimentation of industrial waste water. It is non toxic and its chemical attributes do not alter with the change of its ph level. It is non flammable and is free from chlorine. Application of Polyelectrolyte Cationic can be noticed in sludge dewatering, wastewater purification and sugar refining plants. Its content is slightly acidic and its exposure to skin causes irritation. As primary coagulant, it eliminates the necessity of using extra ferric salts.