Thanks a lot, folks. You all have been great help. I was under the notion that when large quantities of Conc. Sulphuric acid is stored in unlined mild steel storage tanks, absorption of moisture from a highly humid atmosphere (through the vent) might pose problems due to dilution and corrosion...
I wish to have some detail of the design of the vent on large concentrated sulphuric acid storage tanks; and whether and how it helps in avoiding the absorption of moisture from the atmosphere.
