Derusting is a critical process for maintaining the integrity, aesthetics, and functionality of metal objects and structures. By understanding the principles, methods, tools, safety precautions, and best practices of derusting, individuals and industries can effectively remove rust and corrosion, prolonging the lifespan of metal assets and preserving their value for years to come. Removal of rust using various type of derusting chemicals having base of different acids like phosphoric acid, sulphuric acid, hydrochloric acid.