Corrosion of stainless steel equipment by aluminum trichloride molten salt (anhydrous)
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Everyone, I’m working on a process these days where the reactants include anhydrous aluminum trichloride along with several other organic compounds. There is no water in the entire reaction system. Here’s the question: can I use a stainless steel reactor? I know that chloride ions cause significant corrosion to stainless steel. What about aluminum chloride in a molten state? Is it equally corrosive? Is it necessary to use an enamel kettle?
Chlorine in ionic form, whether in aqueous solution or molten state, causes significant corrosion of ordinary stainless steel. It is best to discuss this situation with people specializing in materials science, as after all, most people do not know much about the corrosion properties of molten salts or materials.
Thank you! Then I’ll ask somewhere else
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