Used as a flocculant in water and wastewater treatment to remove suspended solids, oils, and organic matter by promoting aggregation of fine particles for easier separation. Employed in paper manufacturing to improve dry strength and retention of fillers and fibers. Acts as a reactive additive in adhesives and coatings due to its ability to cross-link with various functional groups. Also utilized in the textile industry to enhance dye fixation and fabric finish. Its cationic nature makes it effective in sludge dewatering and in the recovery of proteins during industrial processing.