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corrossion


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Posted by somasekhar on March 08, 2005 at 09:09:50:

My condenser hotwell opened recently.we found reddish
soft deposites on support pipes.After cleaning we found pitting beneath the deposites.We are using Ammonia,Carbohydrazide and tri sodium phosphate for water treatment.
Deposite analysed : Loss on ignition 50% and Total Iron 45%.
Please let me know what is the resean for pitting corrssion?


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