| Main Title |
Influence of Buffer Capacity, Chlorine Residual, and Flow Rate on Corrosion of Mild Steel and Copper. |
| Author |
Pisigan, R. A. ;
Singley, J. E. ;
|
| CORP Author |
Environmental Science and Engineering, Inc., Gainesville, FL. ;Montgomery (James M.), Inc., Gainesville, FL.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab. |
| Year Published |
1987 |
| Report Number |
EPA-R-805400; EPA/600/J-87/011; |
| Stock Number |
PB87-184719 |
| Additional Subjects |
Corrosion ;
Steels ;
Copper ;
Buffers(Chemistry) ;
Water treatment ;
Chlorine ;
pH ;
Alkalinity ;
Chlorides ;
Flow rate ;
Water distribution ;
Distribution systems ;
Oxidation tests ;
Hypochlorites ;
Comparison ;
Reprints ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB87-184719 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
12p |
| Abstract |
The corrosion rates of mild steel decreased as buffer capacity was increased with pH at constant alkalinity. The corrosion-promoting effect of ionic strength, however, appeared to predominate over the buffer action in water systems with relatively high total dissolved solids and chloride levels. The enhanced corrosion of mild steel and copper due to a free chlorine residual was related to the strong oxidation potentials of hypochlorous acid and hypochlorite ions. Corrosion rates were faster with higher flow rates, but other hydraulic and environmental factors also need to be considered when corrosivities are compared. |
