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Acid bathing brass

PostPosted: Thu Oct 05, 2017 11:21 am
by Nathan02
Hi guys i am bathing my 1/4" brass needle output valve in citric acid 1 teaspoon in 500ml water. How long would be recommended. Cheers

Re: Acid bathing brass

PostPosted: Thu Oct 05, 2017 11:46 am
by Doubleuj
You need to "pickle" brass in a solution of peroxide and water, I can't recall the ratio ATM though. Citric will only clean it, pickleing will remove any potential lead from the surface.

Re: Acid bathing brass

PostPosted: Thu Oct 05, 2017 12:17 pm
by Aussiedownunder01
"pickleing" brass isent the a all and b all it only lasts a while saying that most new brass is now almost lead free

Re: Acid bathing brass

PostPosted: Thu Oct 05, 2017 12:27 pm
by Plumby
Almost lead free is like almost being rid of the clap, you still have it but its almost gone.

Re: Acid bathing brass

PostPosted: Thu Oct 05, 2017 7:26 pm
by wynnum1
How do you know that copper is lead free have scraped tons of copper pipe that had lead solder if that copper was reprocessed into pipe could have small amount of lead.

Re: Acid bathing brass

PostPosted: Thu Oct 05, 2017 7:52 pm
by bluc
Pretty sure the smelting process removes all foreign traces..

Re: Acid bathing brass

PostPosted: Fri Oct 06, 2017 10:36 am
by P3T3rPan
bluc wrote:Pretty sure the smelting process removes all foreign traces..

Yah they take a healthy foreshot :laughing-rolling: