Brian Dalder Forum Moderator 177 Posts
Re: What's the best material of construction where hydrochloric acid is concerned?4 June 2012 at 1:29pm
You haven’t given what other species are present including the reactants, but of the species you have listed, the hydrochloric acid poses the biggest concern under these conditions. Glass-lined equipment would be an obvious choice here. PTFE-lined equipment may work if it can tolerate the temperature. For a metal, tantalum might work. Whatever MOC you choose, I would recommend a lab corrosion test be run to confirm the suitability of the MOC under the conditions of operation.
We plan to have a reaction in which the main products will be 6% to 7% aniline, 3% to 4% hydrochloric acid, and temperature of around 120-130 degrees C. What material of construction could be used besides glass-lined?
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