Dinonylnaphthalenesulfonic acid, calcium salt
Dinonylnaphthalenesulfonic acid, calcium salt, identified by CAS number 57855-77-3, is a specialized organic sulfonate primarily utilized as a high-performance additive in the lubricant and metalworking industries. Characterized by its bulky dinonyl hydrophobic groups and calcium cation, this compound exhibits exceptional solubility in non-polar media, including mineral oils and synthetic hydrocarbons. Chemically, it functions as a neutral or overbased surfactant that provides a robust protective barrier on metallic surfaces, effectively mitigating oxidative degradation and corrosion. In industrial handling, it is typically encountered as a viscous liquid, often diluted in a carrier oil to facilitate blending. Its structural integrity ensures stability under varying thermal conditions, making it a reliable raw material for formulating specialty greases and industrial oils. As a versatile chemical intermediate, it offers significant value in research and development for creating advanced surface-active agents and protective coatings. Its unique molecular architecture allows for superior water displacement and demulsification properties, which are critical in maintaining the performance and longevity of mechanical systems exposed to harsh environments.
• Serving as a primary corrosion inhibitor, this calcium sulfonate is extensively integrated into rust-preventative formulations for metal surfaces. The molecule’s polar head group adsorbs strongly onto metallic substrates, while the long-chain dinonyl groups create a dense, hydrophobic barrier that repels moisture and oxygen. This mechanism is vital for protecting machinery, automotive parts, and structural steel during storage and transport in humid or saline environments.
• In the production of high-performance lubricants and greases, the compound acts as a multifunctional additive providing detergent and dispersant capabilities. It helps maintain engine and gearbox cleanliness by suspending insoluble contaminants and neutralizing acidic byproducts generated during oil oxidation. Its high thermal stability ensures that it remains effective under the extreme pressures and temperatures typical of heavy-duty industrial applications, thereby extending the service life of both the lubricant and the mechanical components.
• The material is a critical component in metalworking fluids, where it facilitates superior water displacement and demulsification. By controlling the interaction between oil and water phases, it prevents the formation of stable emulsions that can compromise cooling and lubrication efficiency. Additionally, it is used in the development of temporary protective coatings and specialty fuels to inhibit sediment formation and maintain fluid homogeneity.
Product Name: Dinonylnaphthalenesulfonic acid, calcium salt
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