Posted by Rick on June 29, 2000 at 14:03:56:
In Reply to: Re: acetic water posted by Michael Bailey on June 28, 2000 at 06:35:13:
: : does adding sodium bisulifite into feed water. does that lower the ph in the boiler
: Bruce, Sodium Bisulifite doesnt lower the ph, it helps lower the dissolved oxygen .
Sodium sulfite would tend to remove any dissolved oxygen present in the feedwater and it is usually fed to the deaerating feedwater heater. Sodium bisulfate is a mild acid and would tend to lower the pH of the feedwater. However it is not normally fed to boiler feedwater. I have used it to lower the pH of cooling water.
Sodium sulfite converts to sodium sulfate in the dissolved oxygen reaction, I believe.