Corrosion of mild steel panels, (polished 0.5n with sulphuric acid), due to vapours of acetic acid and formic acid by different woods

The Electronic and electrical equipments made up of mild steel especially small assembly rusted in different environments and time intervals, mechanically these are fails in performance so, as to avoids these circumstances some polishing chemicals are used, but in some cases polishing is not possible in small assemblies so vapors’ are used at the time of packaging in wooden boxes . An invisible layers are formed over the surfaces, after that woods emitted acid vapors because the cell wall is made up of cellulose. Failure of electronic equipments and assemblies in extremely adverse climate. e.g. having wide variation of temperature between day and night, high degree humidity(coastal areas),wide variation of temperature between day and night coupled with low humidity atmosphere is full of dust focus the attention of the worker on the deterioration of electronic equipment. These are made up of mild steel and forming the layer of ferrous sulphate, due to polishing of metal surfaces by conc,0.5N sulphuric acid dumped in packing cases .In most of the cases due to packaging woods. It accelerate the rate of corrosion in temperate region by emitting acid vapors.