| abstract |
(57) [Summary] A method of protecting stainless steel from corrosion by organic sulfonic acid. SOLUTION: In order to avoid corrosion of stainless steel in an organic sulfonic acid medium, cerium (IV), iron (II) I), at least one oxidizing agent selected from oxides or salts of molybdenum (VI) or vanadium (V), nitrites and persulfates, by changing its natural potential to the passivation potential and the Add to the medium in an amount sufficient to interpose. |