Re:Ever wonder why plumbers are paid so much? Peek into the ...
by jaggederest on Sunday November 27, 2022 @01:55PM
(#33765497)
Yes I've found it's very frustrating looking for "genuinely zero lead" brass and bronze. Almost all scrap has lead in it to some degree, and even new metal often has a trace.
Re:Ever wonder why plumbers are paid so much? Peek into the ...
by TEP_Kim_Il_Sung on Sunday November 27, 2022 @02:43PM
(#33766012)
Remove about 82% of lead from bronze using this one weird trick!
https://www.researchgate.net/publication/250155103_Removal_o...
Re:Ever wonder why plumbers are paid so much? Peek into the ...
by Scoundreller on Sunday November 27, 2022 @03:12PM
(#33766337)
I was hoping for something involving a particle accelerator and making gold.
Re:Ever wonder why plumbers are paid so much? Peek into the ...
by jaggederest on Monday November 28, 2022 @05:22AM
(#33771830)
Neat, this dovetails with another interest of mine, pottery. NaF is "sodium feldspar" and Ca-Si compounds are "wollastonite" among others. Both useful as fluxes in metal casting, in addition to their pottery uses.
Re:Ever wonder why plumbers are paid so much? Peek into the ...
by mildchalupa on Sunday November 27, 2022 @07:47PM
(#33768587)
Lead free brass is still 0.2% or less. Mitsubishi makes it. "Eco brass".
I'm not sure it's brass anymore without the lead.
Why does it seem that the better a material works the worse it is for humans.
https://www.haldimandcounty.ca/wp-content/uploads/2018/07/Or...
A big source of lead can be recently sweated copper lines (takes a while for the corrosion control to coat it), but lead solder isn’t supposed to be in potable use anymore. And old fixtures!
Even newer “lead-free” fixtures aren’t 0% lead.
https://www.epa.gov/sdwa/questions-and-answers-about-final-l...