Product Description
Sodium Methylbenzotriazole, also known as Benzotriazole Sodium Salt (CAS 15217-42-2), is a high-efficiency, water-soluble industrial corrosion inhibitor optimized for non-ferrous metal protection. The product features a 40% active ingredient content, ensuring stable, long-lasting and reliable anti-corrosion performance in various industrial environments. It boasts excellent compatibility and solubility, being fully miscible in water and glycol solvents, which allows for easy dilution and uniform blending in diverse liquid systems. Characterized by low dosage requirement, cost-effectiveness and eco-friendly properties, this chemical additive causes no secondary pollution to the operating system. It can form a dense, adherent protective film on metal surfaces to isolate corrosive media, effectively inhibiting metal oxidation and corrosion, and has become a versatile additive widely adopted in multiple industrial fields.
Core Chemical Properties
Benzotriazole Sodium Salt possesses stable physical and chemical properties under conventional industrial conditions, with precise parameter indicators as follows: It has a density of 1.42 at 20℃, a low vapor pressure of 0.001Pa at 25℃, and a Pka value of 8.37 measured at 20℃. The product is odorless in conventional storage and use states, with extremely superior water solubility, reaching 1000g/L at 20℃, which enables rapid dissolution in aqueous systems without precipitation or stratification. Its LogP value is 0.48 at 22.5℃, reflecting moderate lipophilicity and good system compatibility. In addition, the substance is officially included in the EPA Substance Registry System under the name 1H-Benzotriazole, sodium salt (CAS 15217-42-2), complying with international industrial chemical management standards. For safe use and storage, the product should be placed in a cool, dry and ventilated environment; operators need to wear standard protective equipment during handling, and specific safety operation specifications shall refer to the official MSDS document.
| Density | 1.42[at 20℃] |
| Vapor pressure | 0.001Pa at 25℃ |
| Pka | 8.37[at 20 ℃] |
| Odor | No odor |
| Water Solubility | 1000g/L at 20℃ |
| LogP | 0.48 at 22.5℃ |
| EPA Substance Registry System | 1H-Benzotriazole, sodium salt (15217-42-2) |
Product Applications
3.1 Professional Metal Corrosion Inhibitor
This product serves as its core function as a high-performance anti-rust and anti-corrosion agent for a variety of non-ferrous metals, covering copper, silver, lead, nickel, zinc and their alloy materials. Its working principle relies on molecular adsorption on the metal surface to form a uniform, compact and durable nano-scale protective film. This barrier can effectively block the contact between metal substrates and external corrosive substances such as moisture, oxygen and corrosive ions, fundamentally slowing down metal oxidation, rusting and degradation. It is extensively applied in industrial circulating cooling water systems, copper-containing heat exchangers, central air-conditioning piping and equipment, and other industrial facilities with non-ferrous metal components, effectively prolonging the service life of equipment and reducing maintenance costs.
3.2 Functional Industrial Additive
In addition to anti-corrosion functions, Sodium Methylbenzotriazole is a high-value functional additive for multiple industrial products. It can be reasonably added into industrial lubricants, protective coatings, water-based paints and synthetic detergents. By virtue of its excellent metal protection and stable chemical properties, it significantly optimizes the comprehensive performance of downstream products, enhances the anti-corrosion and anti-oxidation capability of product finished products, and effectively extends the service cycle and application stability of lubricants, coatings and other industrial supplies, meeting the refined production needs of various industrial scenarios.
