Different types of corrosion cell, dissimilar electrode cell.salt concentration cell,different concentration cell,different temp cell

1. FFERENT CORROSIO
CELL
Presented by
MD: MOYNUL ISLAM
ID: 20151107004
DEPT. OF APPLIED CHEMISTRY & CHEMICAL ENGINEERING

2. Types of CorrosionCells: There are two types of corrosion cell……..
 Dissimilar electrode cell
 Concentration cells.
a.Salt concentration cell
b.Different concentration cell
c. Different Temperature cell

4. Where two identical electrodes are in contact with aquous solution of different
Composition when the electrode are connected by an wire, Copper dissolved at
the anode
Cu Cu2++2e-
Cathode: Cu2++2e- Cu

5.  Occours due to different in potential
between differently Aerated areas
 Part of metal exposed to air is more
oxygenated part & acts as Cathode
 Part of metal immeresedin electrolyte is
poorly oxygenated & acts as ANODE