Ammonium bisulfate is widely used in various industrial applications due to its acidic properties and solubility in water. It is commonly employed as a pH adjuster in water treatment processes, helping to neutralize alkaline substances and maintain optimal water quality. In the paper industry, it is used to adjust fiber conditions and increase paper strength. In the textile industry, it serves as a dye fixative, ensuring that dyes bond effectively to fabrics and improving colorfastness. Additionally, it is utilized in the production of cleaning agents and detergents, where it acts as a buffering agent to stabilize formulations. In agriculture, ammonium bisulfate is sometimes used as a soil amendment to lower soil pH, making it more suitable for acid-loving plants. It also finds application in the chemical synthesis of other ammonium-based compounds and as a catalyst in certain organic reactions.