Over time, it is very important to deal with metal oxide from the stainless steel. It can be possible by monitoring the Fe dissolved in the solution for this reason. Since rouge is an iron oxide which gets dissolved, the melted Fe is absorbed in the solution. In the initial derouging process, it is important to remove the residue. The liquefied Fe shows the finalization of process over time. Using huge range of techniques, the dissolved Fe concentration is looked after. Spectrophotometry or atomic absorption is one of the most convenient techniques to remove rouge from the surface.
There are two ways to keep an eye on such process. You can monitor the oxide deposit elimination or the corrosion rate with passivation expansion. The passive film is set aside using the surface susceptibility technique. As derouging is the aspect of surface in various phases, it can be possible under the electrochemical methods which indicate the chances of metallurgy on any environment or solution. For proper chances, it is common that corrosion is relative to the current measurement. It is also true that various electrochemical processes are used to observe the reaction of corrosion. This way, potentiodynamic polarization and linear polarization are the most productive and functional techniques. These techniques are very useful.