| Abstract: | Complexometric separation of surface layers for gravimetric determination of corrosion rates A new method for determination of corrosion rates is described. It is concerned with the complete release of surface layers by using Titriplex-III, the anions of which are able to form complexes with the cations of the surface layer. This method is simple to handle, available even at small samples (3–4 g). It gives reliable results and allows further investigations of the layers. The procedure is described in detail for Zink, further examples are given for Fe, Al and Cu. The method is not available for metals which form very thin layers (Ti, Ni). |
