Tolyltriazole
Tolyltriazole (abbreviated as TTA, CAS No. 29385-43-1) is a methyl-modified benzotriazole derivative that appears pale yellow to white in color.
It is extensively utilized as a highly efficient corrosion inhibitor.
By forming a stable and insoluble protective film, it effectively safeguards copper and its copper-based alloys, especially in cooling water systems, industrial lubricants, metalworking fluids, and antifreeze products.
It is renowned for its outstanding thermal and oxidative stability, and also finds applications in electronic manufacturing, detergent formulations, and as a chemical intermediate.
Key Characteristics and Applications
Corrosion Inhibition: It functions as a passivation layer on copper, bronze, and brass surfaces, effectively preventing tarnishing and corrosive damage.
Industrial Water Systems: It is commonly added to circulating water systems, heat exchangers, and cooling towers to inhibit metal corrosion.
Lubricants and Oils: It serves as an additive in engine oils, hydraulic fluids, and gear oils to enhance anti-corrosion performance.
Metalworking: It is incorporated into cutting and polishing fluids to protect metal surfaces from discoloration and corrosion during processing.
Other Applications: It is used in glycol-based antifreeze fluids, runway de-icing solutions, and automatic dishwashing detergents to protect silver components.
Chemical Properties: Its molecular formula is C₇H₇N₃ with a molecular weight of 133.16, and it exists as a mixture of two isomers: 4-methyl-1H-benzotriazole and 5-methyl-1H-benzotriazole.
Physical Properties: It is commercially available in granular or powder form. It exhibits low solubility in water but high solubility in a variety of organic solvents.
Handling and Safety
