||Seattle Distribution System Corrosion Control Study. Volume III: Potential for Drinking Water Contamination from Tin/Antimony Solder.
Herrera, Carlos E. ;
Kirmeyer, Gregory J. ;
Hoyt, Brian P. ;
||Seattle Dept. of Water, WA. Water Quality Div.;Municipal Environmental Research Lab., Cincinnati, OH.
Potable water ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
This study was conducted to evaluate the potential for leaching of metals into drinking water from tin/antimony solder. The study consisted of five research phases: (1) A theoretical investigation of the corrosion products formed from the solder was conducted using pe-pH diagrams and galvanic coupling relationships; (2) static laboratory metal leaching tests were performed to determine the extent of antimony leaching from the solder; (3) field water samples were taken from buildings which contained tin/antimony from tin/antimony soldered plumbing; (4) continuous flow metal leaching tests compared metal leaching from tin/antimony solder with lead/tin solder under three water treatments - lime plus sodium carbonate, lime plus sodium bicarbonate, and lime plus bicarbonate plus silicate; (5) corrosion films that formed on both tin/antimony and lead/tin solder were analyzed by Scanning Electron Microscopy and X-ray diffraction.