Abstract
The adsorption of benzotriazole (BTA) on copper surfaces in 0.001, 0.005 and 0.01 M concentrations of sulphuric acid was investigated using gravimetric measurements. BTA was tested in concentrations from 1X10(-5) to 1x10(-1) M at temperatures from 298 to 328 K. The adsorption mechanism is discussed in terms of applicability of the conventional Frumkin, Bockris-Swinkels and Kastening-Holleck isotherms, among others. The best fit was obtained using the Frumkin isotherm model. The projected molecular area of BTA was calculated to elucidate inhibitor orientation in the adsorption process.
| Original language | English |
|---|---|
| Pages (from-to) | 98-106 |
| Number of pages | 9 |
| Journal | Revista de Metalurgia |
| Volume | 41 |
| Publication status | Published - Mar 2005 |
Keywords
- copper
- sulphuric acid
- benzotriazole
- adsorption isotherm
- objective function
- projected molecular area
- CORROSION-INHIBITOR
- HYDROCHLORIC-ACID
- MILD-STEEL
- EQUATION