Synergistic effect on corrosion inhibition of copper by sodium dodecylbenzenesulphonate (SDBS) and 2-mercaptobenzoxazole

Add time:07/30/2019    Source:sciencedirect.com

The inhibition effects of sodium dodecylbenzenesulphonate (SDBS) and 2-mercaptobenzoxazole (2-MBO) on corrosion of copper in sulphuric acid solution have been studied using electrochemical impedance spectroscopy (EIS) and Tafel polarization measurements. For 2-MBO, a monotonous increase in inhibition efficiency was observed as a function of concentration. For SDBS, however, an optimum in the inhibition efficiency was observed for a certain concentration, which is ascribed to the formation of hemi-micellar aggregates that provoke inhibitor desorption from the metal/solution interface at higher concentrations. Upon mixing 2-MBO and SDBS inhibitors, concentrations range showing synergistic inhibition behaviour were identified, and it is concluded that electrostatic interactions between the adsorbed ions. Different adsorption isotherms were tested for describing the adsorption behaviour of both 2-MBO and SDBS.

We also recommend Trading Suppliers and Manufacturers of sodium o-dodecylbenzenesulphonate (cas 15163-46-9). Pls Click Website Link as below: cas 15163-46-9 suppliers

Prev:New catanionic mixtures of dodecyldimethylammonium bromide/sodium dodecylbenzenesulphonate/water
Next:Thermodynamic and transport properties of sodium dodecylbenzenesulphonate (SDBS) in aqueous medium over the temperature range 298.15 K to 333.15 K)