2006-08-13 16:41:59 · 2 answers · asked by divya_kool18 1 in Science & Mathematics ➔ Chemistry
You dip the clean steel sheets in molten zinc and pull them out. The zinc coats the steel. Being more reactive than iron, the zinc corrodes instead of the steel. This is called cathodic protection. It works as long as there's even a little bit of zinc coating left, unlike paint, which only protects the parts of the surface it actually covers.
2006-08-13 16:58:25 · answer #1 · answered by zee_prime 6 · 0⤊ 0⤋
Galvanistion is the simple process protecting Iron (Fe) from RUST (Fe2O3) by Coating the Iron Surface with Zinc (Zn).......this is so because...Zinc is more Reactive than Iron hence when the atmospheric moisture attacks the Zinc (Zn) oxidises First at makes the further Iron Surface neutral and Gives a SACRIFICIAL PROTECTION AGAINST CORROSION.
It typically means hot-dip galvanizing, a chemical process that is used to coat steel or iron with zinc. This is done to reduce corrosion (specifically rusting) of the ferrous item; while it is accomplished by non-electrochemical means, it serves an electrochemical purpose. HOPE GOT ENOUGH INFORMATION.
2006-08-14 00:09:48 · answer #2 · answered by jass 3 · 0⤊ 0⤋