Advertisement Remove all ads

Explain the Advantages of Galvanizing Over Tinning. - Applied Chemistry 2

Short Note

Explain the advantages of galvanizing over tinning.

Advertisement Remove all ads

Solution

Metallic coatings are either anodic or cathodic depending upon the electrode potential of base method & coating metal. They are used for the prevention of corrosion of metals.Metallic coatings can be divided into anodic and cathodic coating. Galvanising is a coating of Zinc over iron,here zinc acting as anode and exposed area of iron acting as cathode. It means area of anode is larger. Comparatively in tinning coating of tin is acting as cathode(large area)and exposed area of iron(small) acting as anode. Here area of anode is small therefore corrosion will be faster in tinned article as compared to galvanized article. Therefore,galvanizing is more preferred than tinning.

Concept: Types of Electrochemical Corrosion- Galvanic Cell Corrosion
  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×