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. Commonly applied in municipal sewage plants and industrial effluent treatment. Acts as a reactive additive in paper manufacturing to improve wet and dry strength of paper products by enhancing fiber bonding. Employed in the textile industry to improve dye fixation and reduce color loss during washing due to its cationic nature. Used in the formulation of adhesives and coatings where it contributes to cross-linking, improving durability and water resistance. Serves as a precursor or modifier in the synthesis of functional polymers for specialty chemicals, including surfactants and corrosion inhibitors. Also found in some oilfield chemicals to treat produced water and enhance oil recovery processes.