Do chloride ions not cause corrosion to stainless steel under alkaline conditions?
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Will 10%–20% sodium chloride at around pH 10 not cause corrosion to stainless steel? Can carbon steel be used directly? Temperature: room temperature
The corrosion caused by chloride ions is not much different from that in acidic or alkaline environments!
It will corrode; duplex stainless steel is slightly better
For chloride ion corrosion protection, choose polyaniline-based anti-corrosion coatings
The corrosion of stainless steel is primarily influenced by chloride ion concentration, with little relation to pH
It has little to do with pH; it is mainly the chloride ions. Due to their small size and strong penetrating ability, chloride ions preferentially adsorb onto the passivation film, displacing oxygen atoms. They then combine with the cations in the passivation film to form soluble chlorides, resulting in the formation of small pits at specific points on the newly exposed base metal, which in turn causes corrosion of the equipment
It is mainly related to chloride ions; pH also has an impact, but to a lesser extent than the former.