Sodium Methylbenzotriazole CAS#15217-42-2

  • Excellent Metal Corrosion Protection – Forms a protective film on metal surfaces to inhibit rust and corrosion.

  • Effective for Cooling & HVAC Systems – Delivers reliable protection for copper parts in circulating water, heat exchangers and air-conditioning systems.

  • Improves Product Performance – Enhances the durability and efficiency of lubricants, coatings and synthetic detergents.

  • Broad Application Versatility – Suitable for use in a wide range of industrial systems and formulations.

Product Details

Sodium Methylbenzotriazole (CAS# 15217-42-2) is a water-soluble corrosion inhibitor for copper and its alloys. It forms a protective film on metal surfaces to prevent oxidation and corrosion, with 40% active content for reliable performance. Fully soluble in water and glycols, it’s widely used in cooling systems, metalworking fluids and coatings. Store in a cool, dry area; wear protective gear when handling, and refer to MSDS for safety. Cost-effective, eco-friendly and versatile, it meets industrial needs with low dosage.

Sodium Methylbenzotriazole CAS#15217-42-2

 

Benzotriazole, Sodium Salt Chemical Properties

 

Density 1.42[at 20℃]
Vapor pressure 0.001Pa at 25℃
Pka8.37[at 20 ℃]
OdorNo odor
Water Solubility 1000g/L at 20℃
LogP0.48 at 22.5℃
EPA Substance Registry System1H-Benzotriazole, sodium salt (15217-42-2)

Applications of Sodium Methylbenzotriazole

Corrosion Inhibitor:
It is primarily used as an anti-rust and corrosion prevention agent for metals such as silver, copper, lead, nickel, and zinc. By adsorbing onto the metal surface, it forms a thin protective film that blocks corrosive substances like water and oxygen from reaching the metal, thereby preventing deterioration. It is widely applied in circulating cooling water systems, heat exchangers, air-conditioning equipment, and other systems containing copper components.

Additive:
It can also serve as an additive in lubricants, coatings, synthetic detergents, and similar products, helping enhance their performance and extend their service life.

 

Online Consultation

Please fill out the form below and we will contact you as soon as possible