Study of the corrosion inhibition of carbon-steel in dilute ammoniacal media using N-ciclohexil-benzothiazole-sulphenamida

A decrease in the corrosion spot concentration with the increase of the NCBSA concentration indicates a good adsorbability of NCBSA on the metal surface. Mössbauer spectrometry shows the formation of a layer at the surface of the corroded sample, which is interpreted in terms of the formation of complexes between NCBSA and the metal cations present in the carbon-steel structure.