Apparatus and method for inhibiting the leaching of lead in wate

Details Apparatus and method for inhibiting the leaching of lead in wate Apparatus and method for inhibiting the leaching of lead in wate

1996-02-14

1997-05-27

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

427394, C23C 2252

Patent

active

056328257

ABSTRACT:
A copper alloy plumbing fixture containing interdispersed lead particles coated noncontinuously on a water contact surface to resist the leaching of lead into potable water systems. The leach resistant fixture is prepared by immersing conventional copper alloys in a bismuth nitrate solution, selectively and noncontinuously coating the lead dispersoid particles on the water contact surface with bismuth. Tin may be substituted for bismuth to obtain similar results.

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