I'm thinking of trying an aqueous boric acid solution in a nebulizer for a sinus infection, in a similar strength as for eyewash (anywhere from 1 tsp. in 4 oz. to 1 tsp. in 32 oz.). My nebulizer has a stainless steel screen that the vapor comes thru, and I need to know if the aqueous boric acid solution will have any corrosive effect on the stainless? Thank you.
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1$\begingroup$ You think anything would sooner damage stainless steel than mucous membrane? Well, in the long run there would be many such things, but not in the short. $\endgroup$– MithoronCommented Jan 23 at 19:40
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Boric acid is one of the weakest acids commonly used. Its $p$K$_a$ is equal to $9.24$. Its solution will have a negligible corrosive effect on the stainless.
