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SEATTLE DISTRIBUTION SYSTEM CORROSION CONTROL STUDY. VOLUME III: POTENTIAL FOR DRINKING WATER CONTAMINATION FROM TIN/ANTIMONY SOLDER
Citation:
Herrera, C., G. Kirmeyer, AND B. Hoyt. SEATTLE DISTRIBUTION SYSTEM CORROSION CONTROL STUDY. VOLUME III: POTENTIAL FOR DRINKING WATER CONTAMINATION FROM TIN/ANTIMONY SOLDER. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-82/018 (NTIS PB82231242), 1982.
Description:
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.