"Scrap" copper destined for recycling (i.e., water tube, gutters, etc.) may have solders that contain lead but new copper sheet, strip, etc. does not.
Lead sticks very well to copper.
A lead+tin solder was used for soldering components to copper PCB traces for decades.
lead is soft and copper is hard
Uh HUH and copper is 100 % copper
COPPER
Bronze is made from lead, tin, and copper; if you leave out the copper you get an impoverished bronze.
How do we get lead?
lead is soft and copper is hard
Uh HUH and copper is 100 % copper
lead, copper is a metal therefore it is harder
COPPER
When I have to connect copper to lead "D" I usually solder the copper to the lead or wipe a lead joint depending on the diameter To connect copper to cast iron ,.... If there is a hub I caulk the copper directly into the CI with oakum and poured lead (molten) OR one can solder / braze a female adapter fitting and screw the copper into a CI female fitting
Copper, aluminum, steel and lead in that order.
Bronze is made from lead, tin, and copper; if you leave out the copper you get an impoverished bronze.
lead chloride is formed
copper
zinc
lead in copper sulfate is often used to make sulfuric acid by doing electronosis.
Copper sulfate + lead nitrate = Copper nitrate + Lead sulfate CuSO4 (aq) + Pb(NO3)2 (aq) = Cu(NO3)2 (aq) + PbSO4 (s)