Question

Why chlorides are undesirable in boiler water?

Answer 1

Hey.

Here is the answer.

Chloride and sulphate ions inhibit the formation of scale by keeping hardness ions in solution.
Trace amount of Chlorides even with dissolved oxygen can cause corrosion in boiler.
Type Of Corrosion
The type of corrosion classified with respect to outward appearance or altered physical properties
are
Uniform attack
Pitting
Cavitation erosion
Dezincification & parting
Intergrannular corrosion
Cracking

That's why chlorides are undesirable .

Thanks