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Posted by Bob D. on March 03, 2008 at 14:38:11:
In Reply to: pH posted by afdmello on March 03, 2008 at 09:17:06:
: Why do we maintain the pH on the alkaline side.
Because the types of corrosion of particular concern in boilers generally gets worse with lower pH, and more controlled at elevated pH. As with everything else, there are exceptions and "fine print", such as alkali attack in local "dry spots" (nucleate boiling). That's why it's an art.
: When both the acidic and alkaline environment are both corrosive.
If I was making wine, I'd want different conditions chemically than I want for my boilers.
Viva la difference.
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